160 (number)

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

Template:Numbers 100-200
Ordinal	One hundred [and] sixty
Cardinal	160th
Factorization	$2^{5}\cdot 5$
Roman numeral	CLX
Binary	10100000
Hexadecimal	A0

One hundred sixty is the sum of the first 11 primes, as well as the sum of the cubes of the first three 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, safe 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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