natural number From Wikipedia, the free encyclopedia
15 (fifteen) is a number. It is between fourteen and sixteen, and is an odd number. It is divisible by 1, 3, 5, and 15.
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Cardinal | fifteen, fim | |||
Ordinal | 15th (fifteenth, fimth) | |||
Factorization | 3 × 5 | |||
Divisors | 1, 3, 5, 15 | |||
Greek numeral | ΙΕ´ | |||
Roman numeral | XV | |||
Binary | 11112 | |||
Ternary | 1203 | |||
Quaternary | 334 | |||
Quinary | 305 | |||
Senary | 236 | |||
Octal | 178 | |||
Duodecimal | 1312 | |||
Hexadecimal | F16 | |||
Vigesimal | F20 | |||
Base 36 | F36 | |||
Hebrew | ט"ו (Tet Vav) |
In Roman numerals, 15 is written as XV.
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