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15 (number)

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15 (fifteen) is the natural number following 14 and preceding 16.

←10 11 12 13 14 15 16 17 18 19 →

←0 10 20 30 40 50 60 70 80 90 →

CardinalfifteenOrdinal15th
(fifteenth)Numeral system pentadecimal Factorization3 × 5Divisors1, 3, 5, 15Greek numeralΙΕ´Roman numeralXV, xvBinary1111₂Ternary120₃Senary23₆Octal17₈Duodecimal13₁₂HexadecimalF₁₆Hebrew numeralט"ו / י"הBabylonian numeral𒌋𒐙

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