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31283052396 = 2232606921033
BaseRepresentation
bin11101001000100111…
…010111111101101100
32222202011120201101020
4131020213113331230
51003031430134041
622212104214140
72155136362251
oct351047277554
988664521336
1031283052396
11122a3516312
12609076a350
132c471480bb
14172a9d7428
15c315bc866
hex7489d7f6c

31283052396 has 12 divisors (see below), whose sum is σ = 72993788952. Its totient is φ = 10427684128.

The previous prime is 31283052377. The next prime is 31283052397. The reversal of 31283052396 is 69325038213.

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

It is not an unprimeable number, because it can be changed into a prime (31283052397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1303460505 + ... + 1303460528.

It is an arithmetic number, because the mean of its divisors is an integer number (6082815746).

Almost surely, 231283052396 is an apocalyptic number.

It is an amenable number.

31283052396 is an abundant number, since it is smaller than the sum of its proper divisors (41710736556).

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

31283052396 is a wasteful number, since it uses less digits than its factorization.

31283052396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606921040 (or 2606921038 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 31283052396 in words is "thirty-one billion, two hundred eighty-three million, fifty-two thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 12 2606921033 5213842066 7820763099 10427684132 15641526198 31283052396