165 (number)

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165 is the natural number following 164 and preceding 166.


List of numbersIntegers

<< 160 161 162 163 164 165 166 167 168 169 >>

Ordinal One hundred [and]
sixty-five
Cardinal 165th
Factorization 3 \cdot 5 \cdot 11
Roman numeral CLXV
Binary 10100101
Hexadecimal A5
Octal 245

165 is a sphenic number, a tetrahedral number, and the sum of the sums of divisors of the first fourteen integers.

In base 10, it is a self number.

It is a binary palindromic number (10100101).

See also the year AD 165 or 165 BC.