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31696086 = 2312974073
BaseRepresentation
bin111100011101…
…0010011010110
32012122022212010
41320322103112
531103233321
63051205050
7533261262
oct170722326
965568763
1031696086
1116989814
12a746786
136749ca6
1442d10a2
152bb1676
hex1e3a4d6

31696086 has 16 divisors (see below), whose sum is σ = 63456624. Its totient is φ = 10554624.

The previous prime is 31696073. The next prime is 31696097. The reversal of 31696086 is 68069613.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5746 + ... + 9818.

It is an arithmetic number, because the mean of its divisors is an integer number (3966039).

Almost surely, 231696086 is an apocalyptic number.

31696086 is an abundant number, since it is smaller than the sum of its proper divisors (31760538).

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

31696086 is a wasteful number, since it uses less digits than its factorization.

31696086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5375.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 31696086 is about 5629.9277082392. The cubic root of 31696086 is about 316.4719420882.

The spelling of 31696086 in words is "thirty-one million, six hundred ninety-six thousand, eighty-six".

Divisors: 1 2 3 6 1297 2594 3891 4073 7782 8146 12219 24438 5282681 10565362 15848043 31696086