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12870638274 = 2313165008183
BaseRepresentation
bin10111111110010011…
…00101101011000010
31020012222101011112110
423333021211223002
5202324340411044
65525050240150
7633642422514
oct137711455302
936188334473
1012870638274
11550515a03a
1225b2426056
1312a164a8c0
148a14d3bb4
15504dec6b9
hex2ff265ac2

12870638274 has 16 divisors (see below), whose sum is σ = 27721374912. Its totient is φ = 3960196368.

The previous prime is 12870638251. The next prime is 12870638281. The reversal of 12870638274 is 47283607821.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 82504014 + ... + 82504169.

It is an arithmetic number, because the mean of its divisors is an integer number (1732585932).

Almost surely, 212870638274 is an apocalyptic number.

12870638274 is an abundant number, since it is smaller than the sum of its proper divisors (14850736638).

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

12870638274 is a wasteful number, since it uses less digits than its factorization.

12870638274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165008201.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 12870638274 in words is "twelve billion, eight hundred seventy million, six hundred thirty-eight thousand, two hundred seventy-four".

Divisors: 1 2 3 6 13 26 39 78 165008183 330016366 495024549 990049098 2145106379 4290212758 6435319137 12870638274