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85120908 = 22343164963
BaseRepresentation
bin1010001001011…
…01011110001100
312221011120221020
411010231132030
5133242332113
612240234140
72052341625
oct504553614
9187146836
1085120908
1144059664
122460b950
1314834202
14b43aa4c
157716023
hex512d78c

85120908 has 24 divisors (see below), whose sum is σ = 203235648. Its totient is φ = 27713616.

The previous prime is 85120883. The next prime is 85120939. The reversal of 85120908 is 80902158.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81966 + ... + 82997.

It is an arithmetic number, because the mean of its divisors is an integer number (8468152).

Almost surely, 285120908 is an apocalyptic number.

It is an amenable number.

85120908 is an abundant number, since it is smaller than the sum of its proper divisors (118114740).

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

85120908 is a wasteful number, since it uses less digits than its factorization.

85120908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165013 (or 165011 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 85120908 is about 9226.0992840962. The cubic root of 85120908 is about 439.8913436934.

The spelling of 85120908 in words is "eighty-five million, one hundred twenty thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 164963 329926 494889 659852 989778 1979556 7093409 14186818 21280227 28373636 42560454 85120908