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85122852 = 22318139191
BaseRepresentation
bin1010001001011…
…01111100100100
312221011200121020
411010231330210
5133242412402
612240251140
72052350403
oct504557444
9187150536
1085122852
1144060071
1224610ab0
1314835069
14b43b63a
1577168bc
hex512df24

85122852 has 24 divisors (see below), whose sum is σ = 199722432. Its totient is φ = 28216800.

The previous prime is 85122833. The next prime is 85122853. The reversal of 85122852 is 25822158.

It is a super-2 number, since 2×851228522 = 14491799865227808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85122853) 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 7 ways as a sum of consecutive naturals, for example, 17424 + ... + 21767.

It is an arithmetic number, because the mean of its divisors is an integer number (8321768).

Almost surely, 285122852 is an apocalyptic number.

It is an amenable number.

85122852 is an abundant number, since it is smaller than the sum of its proper divisors (114599580).

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

85122852 is a wasteful number, since it uses less digits than its factorization.

85122852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39379 (or 39377 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 85122852 is about 9226.2046367940. The cubic root of 85122852 is about 439.8946924290.

The spelling of 85122852 in words is "eighty-five million, one hundred twenty-two thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 181 362 543 724 1086 2172 39191 78382 117573 156764 235146 470292 7093571 14187142 21280713 28374284 42561426 85122852