15 (nummer)

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← 14 15 16 →
Cardinal fifteen
Ordinal 15t
(fifteent)
Factorisation 3 × 5
Divisors 1, 3, 5, 15
Greek numeral ΙΕ´
Roman numeral XV
Binar 11112
Ternary 1203
Quaternary 334
Quinary 305
Senary 236
Octal 178
Duodecimal 1312
Hexadecimal F16
Vigesimal F20
Base 36 F36
Ebreu ט"ו (Tet Vav)

15 (fifteen) is the naitural nummer follaein 14 an precedin 16.