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85688508 = 22343166063
BaseRepresentation
bin1010001101110…
…00000010111100
312222020102112110
411012320002330
5133414013013
612300334020
72060224503
oct506700274
9188212473
1085688508
1144407054
1224844310
13149a2679
14b54783a
1577c92c3
hex51b80bc

85688508 has 24 divisors (see below), whose sum is σ = 204590848. Its totient is φ = 27898416.

The previous prime is 85688503. The next prime is 85688509. The reversal of 85688508 is 80588658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85688503) 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, 82516 + ... + 83547.

Almost surely, 285688508 is an apocalyptic number.

It is an amenable number.

85688508 is an abundant number, since it is smaller than the sum of its proper divisors (118902340).

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

85688508 is a wasteful number, since it uses less digits than its factorization.

85688508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166113 (or 166111 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 48.

The square root of 85688508 is about 9256.8087373565. The cubic root of 85688508 is about 440.8669340048.

The spelling of 85688508 in words is "eighty-five million, six hundred eighty-eight thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 166063 332126 498189 664252 996378 1992756 7140709 14281418 21422127 28562836 42844254 85688508