308 (number) explained
308 is the natural number following 307 and preceding 309.
| Cardinal: | three hundred eight |
| Ordinal: | 308th(three hundred eighth) |
| Factorization: | 22 × 71 × 111 |
| Divisor: | 1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308 |
| Roman: | CCCVIII |
In mathematics
- 308 is nontotient.[1]
- 308 is the totient sum of the first 41 integers.[2]
- 308 is a heptagonal pyramidal number.
- 308 is the sum of two consecutive primes (151 + 157).
is the largest power of ten that can be stored in
double-precision floating-point format.
References
- Nontotients: even numbers k such that phi(m)=k has no solution.
- a(n) = Sum_ pi(k).
