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85108974 = 2314184829
BaseRepresentation
bin1010001001010…
…10100011101110
312221010222120020
411010222203232
5133241441344
612240103010
72052262056
oct504524356
9187128506
1085108974
11440506a5
1224604a66
131482b952
14b436566
157712719
hex512a8ee

85108974 has 8 divisors (see below), whose sum is σ = 170217960. Its totient is φ = 28369656.

The previous prime is 85108973. The next prime is 85109023. The reversal of 85108974 is 47980158.

It is a sphenic number, since it is the product of 3 distinct primes.

85108974 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85108973) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7092409 + ... + 7092420.

It is an arithmetic number, because the mean of its divisors is an integer number (21277245).

Almost surely, 285108974 is an apocalyptic number.

85108974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

85108974 is a wasteful number, since it uses less digits than its factorization.

85108974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14184834.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 85108974 is about 9225.4525092269. The cubic root of 85108974 is about 439.8707850599.

The spelling of 85108974 in words is "eighty-five million, one hundred eight thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 14184829 28369658 42554487 85108974