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85228808 = 2372117213
BaseRepresentation
bin1010001010001…
…11110100001000
312221101001221112
411011013310020
5133304310213
612242425452
72053301330
oct505076410
9187331845
1085228808
1144122735
1224662288
1314871362
14b4680c0
157737ea8
hex5147d08

85228808 has 32 divisors (see below), whose sum is σ = 183524160. Its totient is φ = 36348480.

The previous prime is 85228783. The next prime is 85228841. The reversal of 85228808 is 80882258.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8210 + ... + 15422.

It is an arithmetic number, because the mean of its divisors is an integer number (5735130).

Almost surely, 285228808 is an apocalyptic number.

It is an amenable number.

85228808 is an abundant number, since it is smaller than the sum of its proper divisors (98295352).

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

85228808 is a wasteful number, since it uses less digits than its factorization.

85228808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437 (or 7433 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 41.

The square root of 85228808 is about 9231.9449738395. The cubic root of 85228808 is about 440.0771352372.

The spelling of 85228808 in words is "eighty-five million, two hundred twenty-eight thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 28 56 211 422 844 1477 1688 2954 5908 7213 11816 14426 28852 50491 57704 100982 201964 403928 1521943 3043886 6087772 10653601 12175544 21307202 42614404 85228808