158 (number)
| ||||
|---|---|---|---|---|
| Cardinal | one hundred fifty-eight | |||
| Ordinal | 158th (one hundred fifty-eighth) | |||
| Factorization | 2 × 79 | |||
| Divisors | 1, 2, 79, 158 | |||
| Greek numeral | ΡΝΗ´ | |||
| Roman numeral | CLVIII, clviii | |||
| Binary | 100111102 | |||
| Ternary | 122123 | |||
| Senary | 4226 | |||
| Octal | 2368 | |||
| Duodecimal | 11212 | |||
| Hexadecimal | 9E16 | |||
158 (one hundred [and] fifty-eight) is the natural number following 157 and preceding 159.
In mathematics
[edit]158 is a nontotient, since there is no integer with 158 coprimes below it. 158 is a Perrin number, appearing after 68, 90, 119.[1]
References
[edit]- ^ "Sloane's A001608 : Perrin sequence". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
External links
[edit]
Wikimedia Commons has media related to 158 (number).