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Cardinal | one hundred fifty-four | |||
Ordinal | 154th (one hundred fifty-fourth) | |||
Factorization | 2 × 7 × 11 | |||
Divisors | 1, 2, 7, 11, 14, 22, 77, 154 | |||
Greek numeral | ΡΝΔ´ | |||
Roman numeral | CLIV | |||
Binary | 100110102 | |||
Ternary | 122013 | |||
Senary | 4146 | |||
Octal | 2328 | |||
Duodecimal | 10A12 | |||
Hexadecimal | 9A16 |
154 (one hundred [and] fifty-four) is the natural number following 153 and preceding 155.
154 is a nonagonal number. [1] Its factorization makes 154 a sphenic number
There is no integer with exactly 154 coprimes below it, making 154 a noncototient, nor is there, in base 10, any integer that added up to its own digits yields 154, making 154 a self number
154 is the sum of the first six factorials, if one starts with and assumes that .
With just 17 cuts, a pancake can be cut up into 154 pieces ( Lazy caterer's sequence). [2]
The distinct prime factors of 154 add up to 20, and so do the ones of 153, hence the two form a Ruth-Aaron pair. 154! + 1 is a factorial prime.
154 is also: