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85690932 = 2237140911
BaseRepresentation
bin1010001101110…
…00101000110100
312222020112212020
411012320220310
5133414102212
612300353140
72060234535
oct506705064
9188215766
1085690932
1144408958
12248457b0
13149a37c2
14b54868c
1577c9d8c
hex51b8a34

85690932 has 12 divisors (see below), whose sum is σ = 199945536. Its totient is φ = 28563640.

The previous prime is 85690919. The next prime is 85690963. The reversal of 85690932 is 23909658.

It is a tau number, because it is divible by the number of its divisors (12).

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, 3570444 + ... + 3570467.

It is an arithmetic number, because the mean of its divisors is an integer number (16662128).

Almost surely, 285690932 is an apocalyptic number.

It is an amenable number.

85690932 is an abundant number, since it is smaller than the sum of its proper divisors (114254604).

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

85690932 is a wasteful number, since it uses less digits than its factorization.

85690932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140918 (or 7140916 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 85690932 is about 9256.9396670822. The cubic root of 85690932 is about 440.8710911215.

The spelling of 85690932 in words is "eighty-five million, six hundred ninety thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 12 7140911 14281822 21422733 28563644 42845466 85690932