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85111904 = 254915417
BaseRepresentation
bin1010001001010…
…11010001100000
312221011010120202
411010223101200
5133242040104
612240124332
72052303443
oct504532140
9187133522
1085111904
1144052919
12246066a8
1314830097
14b43765a
15771351e
hex512b460

85111904 has 24 divisors (see below), whose sum is σ = 167936328. Its totient is φ = 42461440.

The previous prime is 85111903. The next prime is 85111907. The reversal of 85111904 is 40911158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85111903) 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, 13004 + ... + 18420.

It is an arithmetic number, because the mean of its divisors is an integer number (6997347).

Almost surely, 285111904 is an apocalyptic number.

It is an amenable number.

85111904 is a deficient number, since it is larger than the sum of its proper divisors (82824424).

85111904 is a wasteful number, since it uses less digits than its factorization.

85111904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918 (or 5910 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 85111904 is about 9225.6113076587. The cubic root of 85111904 is about 439.8758327321.

The spelling of 85111904 in words is "eighty-five million, one hundred eleven thousand, nine hundred four".