115 (number)

115 (one hundred [and] fifteen) is the natural number following 114 and preceding 116.

Cardinal one hundred [and] fifteen
Ordinal 115th
(one hundred [and] fifteenth)
Numeral system 114
Factorization 5 \cdot 23
Divisors 1, 5, 23, 115
Roman numeral CXV
Binary 11100112
Octal 1638
Duodecimal 9712
Hexadecimal 7316

In mathematics

115 is a heptagonal pyramidal number and a lucky number. Because 115 has an odd number of 1s in its binary representation, it is sometimes called an "odious number."

In other fields

115 is also:

See also

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