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165110980 = 2258255549
BaseRepresentation
bin10011101011101…
…10010011000100
3102111200111200111
421311312103010
5314232022410
624214522404
74043264056
oct1165662304
9374614614
10165110980
1185223361
1247366404
132828cc08
1417cdd8d6
15e766b8a
hex9d764c4

165110980 has 12 divisors (see below), whose sum is σ = 346733100. Its totient is φ = 66044384.

The previous prime is 165110963. The next prime is 165110989. The reversal of 165110980 is 89011561.

165110980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 67338436 + 97772544 = 8206^2 + 9888^2 .

It is not an unprimeable number, because it can be changed into a prime (165110989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4127755 + ... + 4127794.

It is an arithmetic number, because the mean of its divisors is an integer number (28894425).

Almost surely, 2165110980 is an apocalyptic number.

165110980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165110980 is an abundant number, since it is smaller than the sum of its proper divisors (181622120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165110980 is a wasteful number, since it uses less digits than its factorization.

165110980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255558 (or 8255556 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 165110980 is about 12849.5517431543. The cubic root of 165110980 is about 548.6035981543.

The spelling of 165110980 in words is "one hundred sixty-five million, one hundred ten thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 8255549 16511098 33022196 41277745 82555490 165110980