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231 (number)

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Title: 231 (number)  
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231 (number)

230 231 232
Cardinal two hundred thirty-one
Ordinal 231st
(two hundred and thirty-first)
Factorization 3 × 7 × 11
Roman numeral CCXXXI
Binary 111001112
Ternary 221203
Quaternary 32134
Quinary 14115
Senary 10236
Octal 3478
Duodecimal 17312
Hexadecimal E716
Vigesimal BB20
Base 36 6F36

231 (two hundred [and] thirty-one) is the natural number following 230 and preceding 232.

In mathematics

Two hundred [and] thirty-one 231 = 3·7·11, sphenic number, triangular number, hexagonal number, octahedral number, centered octahedral number, the number of integer partitions of 16, Mertens function returns 0, and is the number of cubic inches in a U.S. liquid gallon.

In chemistry

In other fields

231 is:

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