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85215932 = 2236758049
BaseRepresentation
bin1010001010001…
…00101010111100
312221100102021122
411011010222330
5133303402212
612242250112
72053215644
oct505045274
9187312248
1085215932
1144113a9a
1224656938
1314868539
14b463524
157734272
hex5144abc

85215932 has 12 divisors (see below), whose sum is σ = 149536800. Its totient is φ = 42491136.

The previous prime is 85215929. The next prime is 85215941. The reversal of 85215932 is 23951258.

It is a junction number, because it is equal to n+sod(n) for n = 85215892 and 85215901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27557 + ... + 30492.

It is an arithmetic number, because the mean of its divisors is an integer number (12461400).

Almost surely, 285215932 is an apocalyptic number.

It is an amenable number.

85215932 is a deficient number, since it is larger than the sum of its proper divisors (64320868).

85215932 is a wasteful number, since it uses less digits than its factorization.

85215932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58420 (or 58418 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 85215932 is about 9231.2475863233. The cubic root of 85215932 is about 440.0549724704.

The spelling of 85215932 in words is "eighty-five million, two hundred fifteen thousand, nine hundred thirty-two".

Divisors: 1 2 4 367 734 1468 58049 116098 232196 21303983 42607966 85215932