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85413908 = 2237619461
BaseRepresentation
bin1010001011101…
…01000000010100
312221201110212002
411011311000110
5133331221113
612250414432
72055002066
oct505650024
9187643762
1085413908
1144239808
1224731418
1314907698
14b4b5736
157772c58
hex5175014

85413908 has 24 divisors (see below), whose sum is σ = 156047304. Its totient is φ = 40867200.

The previous prime is 85413907. The next prime is 85413943. The reversal of 85413908 is 80931458.

It can be written as a sum of positive squares in 4 ways, for example, as 16224784 + 69189124 = 4028^2 + 8318^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85413907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4298 + ... + 13758.

It is an arithmetic number, because the mean of its divisors is an integer number (6501971).

Almost surely, 285413908 is an apocalyptic number.

It is an amenable number.

85413908 is a deficient number, since it is larger than the sum of its proper divisors (70633396).

85413908 is a wasteful number, since it uses less digits than its factorization.

85413908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9563 (or 9561 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 85413908 is about 9241.9645097782. The cubic root of 85413908 is about 440.3954915156.

The spelling of 85413908 in words is "eighty-five million, four hundred thirteen thousand, nine hundred eight".

Divisors: 1 2 4 37 61 74 122 148 244 2257 4514 9028 9461 18922 37844 350057 577121 700114 1154242 1400228 2308484 21353477 42706954 85413908