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12707934291 = 3313123129411
BaseRepresentation
bin10111101010111001…
…11011000001010011
31012210122012221122000
423311130323001103
5202011212344131
65500555045043
7626625442053
oct136534730123
935718187560
1012707934291
115431330138
122567a40783
131276a21460
14887a5d563
154e59adce6
hex2f573b053

12707934291 has 32 divisors (see below), whose sum is σ = 20291927040. Its totient is φ = 7813648800.

The previous prime is 12707934289. The next prime is 12707934311. The reversal of 12707934291 is 19243970721.

12707934291 is a `hidden beast` number, since 1 + 270 + 7 + 93 + 4 + 291 = 666.

It is not a de Polignac number, because 12707934291 - 21 = 12707934289 is a prime.

It is a super-2 number, since 2×127079342912 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12707934221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 417376 + ... + 446786.

It is an arithmetic number, because the mean of its divisors is an integer number (634122720).

Almost surely, 212707934291 is an apocalyptic number.

12707934291 is a deficient number, since it is larger than the sum of its proper divisors (7583992749).

12707934291 is a wasteful number, since it uses less digits than its factorization.

12707934291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30664 (or 30658 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 12707934291 in words is "twelve billion, seven hundred seven million, nine hundred thirty-four thousand, two hundred ninety-one".

Divisors: 1 3 9 13 27 39 117 351 1231 3693 11079 16003 29411 33237 48009 88233 144027 264699 382343 432081 794097 1147029 3441087 10323261 36204941 108614823 325844469 470664233 977533407 1411992699 4235978097 12707934291