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85406888 = 2371525123
BaseRepresentation
bin1010001011100…
…11010010101000
312221201010020002
411011303102220
5133331010023
612250322132
72054642450
oct505632250
9187633202
1085406888
1144234506
1224729348
1314904428
14b4b2d60
157770b28
hex51734a8

85406888 has 16 divisors (see below), whose sum is σ = 183014880. Its totient is φ = 36602928.

The previous prime is 85406887. The next prime is 85406899. The reversal of 85406888 is 88860458.

It is not an unprimeable number, because it can be changed into a prime (85406887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762506 + ... + 762617.

It is an arithmetic number, because the mean of its divisors is an integer number (11438430).

Almost surely, 285406888 is an apocalyptic number.

It is an amenable number.

85406888 is an abundant number, since it is smaller than the sum of its proper divisors (97607992).

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

85406888 is a wasteful number, since it uses less digits than its factorization.

85406888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525136 (or 1525132 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 47.

The square root of 85406888 is about 9241.5847125912. The cubic root of 85406888 is about 440.3834261072.

The spelling of 85406888 in words is "eighty-five million, four hundred six thousand, eight hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 1525123 3050246 6100492 10675861 12200984 21351722 42703444 85406888