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85100808 = 23313272759
BaseRepresentation
bin1010001001010…
…00100100001000
312221010120100210
411010220210020
5133241211213
612240001120
72052226212
oct504504410
9187116323
1085100808
1144045551
12246001a0
1314828010
14b4335b2
1577100c3
hex5128908

85100808 has 32 divisors (see below), whose sum is σ = 229118400. Its totient is φ = 26184768.

The previous prime is 85100803. The next prime is 85100809. The reversal of 85100808 is 80800158.

It is not an unprimeable number, because it can be changed into a prime (85100801) 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, 136068 + ... + 136691.

It is an arithmetic number, because the mean of its divisors is an integer number (7159950).

Almost surely, 285100808 is an apocalyptic number.

It is an amenable number.

85100808 is an abundant number, since it is smaller than the sum of its proper divisors (144017592).

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

85100808 is a wasteful number, since it uses less digits than its factorization.

85100808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272781 (or 272777 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 85100808 is about 9225.0099186939. The cubic root of 85100808 is about 439.8567164310.

The spelling of 85100808 in words is "eighty-five million, one hundred thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 272759 545518 818277 1091036 1636554 2182072 3273108 3545867 6546216 7091734 10637601 14183468 21275202 28366936 42550404 85100808