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85192657 = 118778831
BaseRepresentation
bin1010001001111…
…10111111010001
312221022020100121
411010332333101
5133302131112
612241550241
72053061044
oct504767721
9187266317
1085192657
11440a8560
1224645381
131485aa74
14b458c5b
15772c407
hex513efd1

85192657 has 8 divisors (see below), whose sum is σ = 93053952. Its totient is φ = 77350800.

The previous prime is 85192643. The next prime is 85192697. The reversal of 85192657 is 75629158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85192657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85192697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5232 + ... + 14062.

It is an arithmetic number, because the mean of its divisors is an integer number (11631744).

Almost surely, 285192657 is an apocalyptic number.

It is an amenable number.

85192657 is a deficient number, since it is larger than the sum of its proper divisors (7861295).

85192657 is a wasteful number, since it uses less digits than its factorization.

85192657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9719.

The product of its digits is 151200, while the sum is 43.

The square root of 85192657 is about 9229.9868363936. The cubic root of 85192657 is about 440.0149047981.

It can be divided in two parts, 85192 and 657, that added together give a square (85849 = 2932).

The spelling of 85192657 in words is "eighty-five million, one hundred ninety-two thousand, six hundred fifty-seven".

Divisors: 1 11 877 8831 9647 97141 7744787 85192657