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.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction