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12957217962 = 23131523109073
BaseRepresentation
bin11000001000100111…
…10111010010101010
31020110000021212112120
430010103313102222
5203014021433322
65541422052110
7636043351443
oct140423672252
936400255476
1012957217962
11554a0146a7
12261741a036
1312b6572aa0
148acbd02ca
1550c800a5c
hex3044f74aa

12957217962 has 32 divisors (see below), whose sum is σ = 27926434368. Its totient is φ = 3984182016.

The previous prime is 12957217927. The next prime is 12957217967. The reversal of 12957217962 is 26971275921.

It is not an unprimeable number, because it can be changed into a prime (12957217967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64258 + ... + 173330.

It is an arithmetic number, because the mean of its divisors is an integer number (872701074).

Almost surely, 212957217962 is an apocalyptic number.

12957217962 is an abundant number, since it is smaller than the sum of its proper divisors (14969216406).

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

12957217962 is a wasteful number, since it uses less digits than its factorization.

12957217962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110614.

The product of its digits is 952560, while the sum is 51.

The spelling of 12957217962 in words is "twelve billion, nine hundred fifty-seven million, two hundred seventeen thousand, nine hundred sixty-two".

Divisors: 1 2 3 6 13 26 39 78 1523 3046 4569 9138 19799 39598 59397 109073 118794 218146 327219 654438 1417949 2835898 4253847 8507694 166118179 332236358 498354537 996709074 2159536327 4319072654 6478608981 12957217962