160 (number)

160 is the natural number following one hundred fifty-nine and preceding one hundred sixty-one.

List of numbers -- Integers << 100 110 120 130 140 150 160 170 180 190 >>
Ordinal	One hundred [and] sixty
Cardinal	160th
Factorization	<math>2^5 \cdot 5<math>
Roman numeral	CLX
Binary	10100000
Hexadecimal	A0

One hundred sixty is the sum of the first 11 primes. Given 160, the Mertens function returns 0. 160 is the smallest number n with exactly 12 solutions to the equation φ(x) = n.

One hundred sixty is also:

• The year AD 160 or 160 BC.

Other numbers in the 160s

161 = 7 23, sum of five consecutive primes (23 + 29 + 31 + 37 + 41), hexagonal pyramidal number

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162 = 2 3^4, Harshad number, divisible by φ(162), untouchable number

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163 = prime number, Mertens function returns 0. Multiplied by -1, a Heegner number

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164 = 2^2 41, Mertens function returns 0

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165 = 3 5 11, sphenic number, tetrahedral number, self number

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166 = 2 83, Smith number, Mertens function returns 0, centered triangular number

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167 = prime

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168 = 2^3 3 7, sum of four consecutive primes (37 + 41 + 43 + 47)

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One hundred sixty-nine has an article of its own.

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