308 (number)
308 is the natural number following 307 and preceding 309.
| ||||
|---|---|---|---|---|
| Cardinal | three hundred eight | |||
| Ordinal | 308th (three hundred eighth) | |||
| Factorization | 22 × 71 × 111 | |||
| Divisors | 1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308 | |||
| Greek numeral | ΤΗ´ | |||
| Roman numeral | CCCVIII | |||
| Binary | 1001101002 | |||
| Ternary | 1021023 | |||
| Senary | 12326 | |||
| Octal | 4648 | |||
| Duodecimal | 21812 | |||
| Hexadecimal | 13416 | |||
In mathematics
[edit]- 308 is nontotient.[1]
- 308 is the totient sum of the first 41 integers.[2]
- 308 is a heptagonal pyramidal number.[3]
- 308 is the sum of two consecutive primes (151 + 157).[4]
- is the largest power of ten that can be stored in double-precision floating-point format.[citation needed]
References
[edit]- ^ Sloane, N. J. A. (ed.). "Sequence A005277 (Nontotients: even numbers k such that phi(m)=k has no solution)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A046992 (a(n) = Sum_{k=1..n} pi(k))". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A002413 (Heptagonal pyramidal numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
- ^ Sloane, N. J. A. (ed.). "Sequence A001043 (Numbers that are the sum of 2 successive primes.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.