Number 31 facts
The odd number 31 is spelled 🔊, and written in words: thirty-one. The ordinal number 31st is said 🔊 and written as: thirty-first. Phone prefix +31 or 0031. The meaning of the number 31 in Maths: Is it Prime? Factorization and prime factors tree. The square root and cube root of 31. What is 31 in computer science, numerology, codes and images, photo art, writing and naming in other languages. Other interesting facts, videos, news related to 31. ‹‹ 30 32 ››
Interesting facts about the number 31
Asteroids
- (31) Euphrosyne is asteroid number 31. It was discovered by J. Ferguson from Obs. United States Naval on 9/1/1854.
Areas, mountains and surfaces
- The total area of Berkner Island is 16,939 square miles (43,873 square km). Country None (Antarctic territorial claims by Argentina, Chile (partial) and United Kingdom). 31th largest island in the world.
Distances
- There is a 31 miles (49 km) direct distance between Bogor (Indonesia) and Tangerang (Indonesia).
- There is a 20 miles (31 km) direct distance between Bucheon-si (South Korea) and Seongnam-si (South Korea).
Games
History and politics
- ISO 3166 country codes for Azerbaijan are AZ, AZE, 031 and internet top-level domain is .az
- United Nations Security Council Resolution number 31, adopted 25 August 1947. Committee relating to resolution of the Indonesian National Revolution. Resolution text.
Mathematics
- 31 is the 5th centered triangular number
Example of 4th centered triangular number with 19 dots. - 31 is the 4th centered pentagonal number
Example of 4th centered pentagonal number with 31 dots. - 31 is the earliest and the only known case such that the sum of the divisors of two distinct numbers (16 & 25) is the same prime quantity (31), that is to say: 1+2+4+8+16 = 31 and 1+5+25 = 31
- 31 is the number of minimal composites which cover the set of composites in base 10
- 31 is the smallest prime that is a sum of two triangular numbers with prime indices
- 31 is a Mersenne prime.
- More mathematics ...
Mobile and telephony
- Number 31 or +31 or 0031 is a dial the international call prefix for Netherlands. (00/+) is dial the international call prefix.
Religions
- Psalm 31 is a passage from the Bible, specifically from the Book of Psalms, which is a collection of prayers, praises and poems largely attributed to King David. Psalm 31 is known as a prayer of trust and refuge in God in times of distress and adversity. It is a plea for divine protection and an acknowledgment of faith in God's justice and mercy. Psalm 31 is often used to seek protection and strength in difficult times, reminding us that regardless of the circumstances, trust in God brings peace and salvation. It is a psalm of hope, surrender and faith, which can be comforting to those facing situations of distress or seeking refuge in their faith.
Science
- Gallium is the chemical element in the periodic table that has the symbol Ga and atomic number 31.
Sports
- The best athletes to wear number 31
Greg Maddux, MLB; Reggie Miller, NBA; Fergie Jenkins, MLB; Dave Winfield, MLB; Billy Smith, NHL; Mike Piazza, MLB; Donnie Shell, NFL
Tv, movies and cinematography
- In the fictional Star Trek universe, Section 31 is a clandestine intelligence organization of the United Federation of Planets, not recognized by the government of the latter. Its main purpose is to protect the interests of the Federation against possible internal or external threats to the Federation.
- Rob Zombie's 31 Official Trailer #1 (2016) - Sheri Moon Zombie, Malcolm McDowell
Please write us
If you know something interesting about the number 31 or any natural number (positive integer), please write to us.What is 31 in other units
The decimal (Arabic) number 31 converted to a Roman number is XXXI.
Roman and decimal number conversions.
31 kilograms (kg) = 68.3 pounds (lbs)
31 pounds (lbs) = 14.1 kilograms (kg)
31 kilometers (km) equals to 19.263 miles (mi).
31 miles (mi) equals to 49.890 kilometers (km).
31 meters (m) equals to 49.890 feet (ft).
31 feet (ft) equals 9.449 meters (m).
31 centimeters (cm) equals to 12.2 inches (in).
31 inches (in) equals to 78.7 centimeters (cm).
31° Fahrenheit (°F) equals to -0.6° Celsius (°C)
31° Celsius (°C) equals to 87.8° Fahrenheit (°F)
31 Horsepower (hp) equals to 22.80 kilowatts (kW)
31 kilowatts (kW) equals to 42.15 horsepower (hp)
| The number 31 converted to a Mayan number is |
|
| Decimal and Mayan number conversions. |
Weight conversion
31 kilograms (kg) = 68.3 pounds (lbs)
31 pounds (lbs) = 14.1 kilograms (kg)
Length conversion
31 kilometers (km) equals to 19.263 miles (mi).
31 miles (mi) equals to 49.890 kilometers (km).
31 meters (m) equals to 49.890 feet (ft).
31 feet (ft) equals 9.449 meters (m).
31 centimeters (cm) equals to 12.2 inches (in).
31 inches (in) equals to 78.7 centimeters (cm).
Temperature conversion
31° Fahrenheit (°F) equals to -0.6° Celsius (°C)
31° Celsius (°C) equals to 87.8° Fahrenheit (°F)
Power conversion
31 Horsepower (hp) equals to 22.80 kilowatts (kW)
31 kilowatts (kW) equals to 42.15 horsepower (hp)
Codes and images of the number 31
Number 31 morse code: ...-- .----Sign language for number 31:
Number 31 in braille:
| Images of the number | |
| Image (1) of the number | Image (2) of the number |
| More images, other sizes, codes and colors ... | |
|
|
|
Year 31 AD
- Musonius Rufus, Roman philosopher was born.
- Saint Stephen died, by stoning.
Gregorian, Hebrew, Islamic, Persian and Buddhist Year (Calendar)
Gregorian year 31 is Buddhist year 574.Buddhist year 31 is Gregorian year 512 a. C.
Gregorian year 31 is Islamic year -609 or -608.
Islamic year 31 is Gregorian year 651 or 652.
Gregorian year 31 is Persian year -592 or -591.
Persian year 31 is Gregorian 652 or 653.
Gregorian year 31 is Hebrew year 3791 or 3792.
Hebrew year 31 is Gregorian year 3729 a. C.
The Buddhist calendar is used in Sri Lanka, Cambodia, Laos, Thailand, and Burma. The Persian calendar is the official calendar in Iran and Afghanistan.
Share in social networks
Advanced math operations
Is Prime?
The number 31 is a prime number. The closest prime numbers are 29, 37.
The 31st prime number in order is 127.
Factorization and factors (dividers)
The prime factors of 31
Prime numbers have no prime factors smaller than themselves.
The factors of 31 are 1, 31.
Total factors 2.
Sum of factors 32 (1).
Prime factor tree
31 is a prime number.
Powers
The second power of 312 is 961.
The third power of 313 is 29.791.
Roots
The square root √31 is 5,567764.
The cube root of 3√31 is 3,141381.
Logarithms
The natural logarithm of No. ln 31 = loge 31 = 3,433987.
The logarithm to base 10 of No. log10 31 = 1,491362.
The Napierian logarithm of No. log1/e 31 = -3,433987.
Trigonometric functions
The cosine of 31 is 0,914742.The sine of 31 is -0,404038.
The tangent of 31 is -0,441696.
Number 31 in Computer Science
| Code type | Code value |
|---|---|
| Unix time | Unix time 31 is equal to Thursday Jan. 1, 1970, 12:31 a.m. GMT |
| IPv4, IPv6 | Number 31 internet address in dotted format v4 0.0.0.31, v6 ::1f |
| 31 Decimal | = 11111 Binary |
| 31 Decimal | = 1011 Ternary |
| 31 Decimal | = 37 Octal |
| 31 Decimal | = 1F Hexadecimal (0x1f hex) |
| 31 BASE64 | MzE= |
| 31 MD5 | c16a5320fa475530d9583c34fd356ef5 |
| 31 SHA1 | 632667547e7cd3e0466547863e1207a8c0c0c549 |
| 31 SHA224 | c05730c3a7a2dbef1693c0299929166dd379d9b57a1ddc5024aa2b48 |
| 31 SHA256 | eb1e33e8a81b697b75855af6bfcdbcbf7cbbde9f94962ceaec1ed8af21f5a50f |
| 31 SHA384 | 63eba807c25331f128c471c835447eed6b450dd0b3887234e6810a2ffdbfa30b71c7c286ea35e5e6642827dcf65a7bc8 |
| More SHA codes related to the number 31 ... | |
If you know something interesting about the 31 number that you did not find on this page, do not hesitate to write us here.
Numerology 31
According to Wikipedia, numerology is based on faith, yet many people seek the meaning of the number 31 from a numerological perspective.
More about numerology 31 ...
More about numerology 31 ...
№ 31 in other languages
How to say or write the number thirty-one in Spanish, German, French and other languages.
| Spanish: | 🔊 (número 31) | treinta y uno |
| German: | 🔊 (Nummer 31) | einunddreißig |
| French: | 🔊 (nombre 31) | trente et un |
| Portuguese: | 🔊 (número 31) | trinta e um |
| Hindi: | 🔊 (संख्या 31) | इकतीस |
| Chinese: | 🔊 (数 31) | 三十一 |
| Arabian: | 🔊 (عدد 31) | واحد و ثلاثون |
| Czech: | 🔊 (číslo 31) | třicet jedna |
| Korean: | 🔊 (번호 31) | 삼십일 |
| Danish: | 🔊 (nummer 31) | enogtredive |
| Hebrew: | (מספר 31) | שלשים ואחת |
| Dutch: | 🔊 (nummer 31) | eenendertig |
| Japanese: | 🔊 (数 31) | 三十一 |
| Indonesian: | 🔊 (jumlah 31) | tiga puluh satu |
| Italian: | 🔊 (numero 31) | trentuno |
| Norwegian: | 🔊 (nummer 31) | tretti-en |
| Polish: | 🔊 (liczba 31) | trzydzieści jeden |
| Russian: | 🔊 (номер 31) | тридцать один |
| Turkish: | 🔊 (numara 31) | otuzbir |
| Thai: | 🔊 (จำนวน 31) | สามสิบเอ็ด |
| Ukrainian: | 🔊 (номер 31) | тридцять один |
| Vietnamese: | 🔊 (con số 31) | ba mươi mốt |
| Other languages ... | ||
News to email
Comment
If you know something interesting about the number 31 or any other
natural number (positive integer), please write to us here or on Facebook.
Legal Notices & Terms of Use
The content of the comments is the opinion of the users and not of number.academy. It is not allowed to pour comments contrary to the laws, insulting, illegal or harmful to third parties. Number.academy reserves the right to remove or not publish any inappropriate comment. It also reserves the right to publish a comment on another topic. Privacy Policy.
The content of the comments is the opinion of the users and not of number.academy. It is not allowed to pour comments contrary to the laws, insulting, illegal or harmful to third parties. Number.academy reserves the right to remove or not publish any inappropriate comment. It also reserves the right to publish a comment on another topic. Privacy Policy.
Frequently asked questions about the number 31
Is 31 prime and why?
The number 31 is a prime number because its divisors are: 1, 31.
How do you write the number 31 in words?
31 can be written as "thirty-one".
Number 31 in News
| France24: French treasure hunt for buried owl statue ends after 31 years
A mass treasure hunt appears to have come to an end, after an announcement in France that a buried statuette of a golden owl has finally been unearthed – after 31 years. Oct. 3, 2024 |
| The Sydney Morning Herald: UK woman identified 31 years after murder
A woman’s body found 31 years ago in Antwerp has been identified as Rita Roberts. Nov. 15, 2023 |
| The Sydney Morning Herald: Woman reported missing 31 years ago found in Puerto Rico
The case had stumped authorities, who later declared the woman legally dead. March 6, 2023 |
| France24: France goes 31 days without rainfall, unprecedented in winter
France has matched its record dry spell of 31 days without significant rainfall, the country's weather service said Tuesday, amid concerns over water reserves in parts of Europe still reeling from last year's severe drought. Feb. 21, 2023 |
| BBC: Thailand warship capsizes leaving 31 sailors missing
The navy is searching for survivors after the HTMS Sukhothai, carrying 106 crew, sank in a storm. Dec. 19, 2022 |