158 (number)
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|---|---|---|---|---|
| Cardinal | one hundred fifty-eight | |||
| Ordinal | 158th (one hundred and fifty-eighth) |
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| Factorization | 2 × 79 | |||
| Divisors | 1, 2, 79, 158 | |||
| Roman numeral | CLVIII | |||
| Binary | 100111102 | |||
| Ternary | 122123 | |||
| Quaternary | 21324 | |||
| Quinary | 11135 | |||
| Senary | 4226 | |||
| Octal | 2368 | |||
| Duodecimal | 11212 | |||
| Hexadecimal | 9E16 | |||
| Vigesimal | 7I20 | |||
| Base 36 | 4E36 | |||
158 (one hundred [and] fifty-eight) is the natural number following 157 and preceding 159.
158 is a nontotient, since there is no integer with 158 coprimes below it. 158 is a Perrin number, appearing after 68, 90, 119.
158 is the number of digits in the decimal expansion of 100!, the product of all the natural numbers up to and including 100.
158 is also:
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