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85900825 = 523436033
BaseRepresentation
bin1010001111010…
…11111000011001
312222122012210001
411013223320121
5133442311300
612305053001
72062100503
oct507537031
9188565701
1085900825
114454161a
1224927161
1314a481ba
14b5a0d73
15781c16a
hex51ebe19

85900825 has 6 divisors (see below), whose sum is σ = 106517054. Its totient is φ = 68720640.

The previous prime is 85900817. The next prime is 85900879. The reversal of 85900825 is 52800958.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4756761 + 81144064 = 2181^2 + 9008^2 .

It is not a de Polignac number, because 85900825 - 23 = 85900817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1717992 + ... + 1718041.

Almost surely, 285900825 is an apocalyptic number.

It is an amenable number.

85900825 is a deficient number, since it is larger than the sum of its proper divisors (20616229).

85900825 is a wasteful number, since it uses less digits than its factorization.

85900825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436043 (or 3436038 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 85900825 is about 9268.2697953825. The cubic root of 85900825 is about 441.2307569712.

The spelling of 85900825 in words is "eighty-five million, nine hundred thousand, eight hundred twenty-five".

Divisors: 1 5 25 3436033 17180165 85900825