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231086716 = 22759139883
BaseRepresentation
bin11011100011000…
…01101001111100
3121002211102101021
431301201221330
5433124233331
634532553524
75504130130
oct1561415174
9532742337
10231086716
11109495963
12654828a4
1338b4cb03
14229953c0
151544a211
hexdc61a7c

231086716 has 24 divisors (see below), whose sum is σ = 470010240. Its totient is φ = 97357872.

The previous prime is 231086707. The next prime is 231086717. The reversal of 231086716 is 617680132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231086717) 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, 68290 + ... + 71593.

It is an arithmetic number, because the mean of its divisors is an integer number (19583760).

Almost surely, 2231086716 is an apocalyptic number.

It is an amenable number.

231086716 is an abundant number, since it is smaller than the sum of its proper divisors (238923524).

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

231086716 is a wasteful number, since it uses less digits than its factorization.

231086716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139953 (or 139951 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 231086716 is about 15201.5366328539. The cubic root of 231086716 is about 613.6560123374.

The spelling of 231086716 in words is "two hundred thirty-one million, eighty-six thousand, seven hundred sixteen".

Divisors: 1 2 4 7 14 28 59 118 236 413 826 1652 139883 279766 559532 979181 1958362 3916724 8253097 16506194 33012388 57771679 115543358 231086716