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85015888 = 2431171403
BaseRepresentation
bin1010001000100…
…11110101010000
312220222020212121
411010103311100
5133231002023
612234104024
72051423506
oct504236520
9186866777
1085015888
1143a97771
122457b014
13147c8479
14b410676
1576e4d5d
hex5113d50

85015888 has 20 divisors (see below), whose sum is σ = 170032768. Its totient is φ = 41136480.

The previous prime is 85015877. The next prime is 85015933. The reversal of 85015888 is 88851058.

85015888 is an admirable number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 85206 + ... + 86197.

Almost surely, 285015888 is an apocalyptic number.

It is an amenable number.

85015888 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

85015888 is a wasteful number, since it uses less digits than its factorization.

85015888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171442 (or 171436 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 43.

The square root of 85015888 is about 9220.4060648108. The cubic root of 85015888 is about 439.7103603444.

The spelling of 85015888 in words is "eighty-five million, fifteen thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 31 62 124 248 496 171403 342806 685612 1371224 2742448 5313493 10626986 21253972 42507944 85015888