47 (number)

← 46 47 48 →
Cardinalforty-seven
Ordinal47th
(forty-seventh)
Factorizationprime
Prime15th
Divisors1, 47
Greek numeralΜΖ´
Roman numeralXLVII
Binary1011112
Ternary12023
Senary1156
Octal578
Duodecimal3B12
Hexadecimal2F16

47 (forty-seven) is the natural number following 46 and preceding 48. It is a prime number.

It is the adopted favorite number of Pomona College, a liberal arts college in Southern California, whose alumni have added cultural references to it in numerous places, including many Star Trek episodes.