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12758864992 = 251572539583
BaseRepresentation
bin10111110000111110…
…01101010001100000
31012221012001111102021
423320133031101200
5202112232134432
65510014431224
7631114364056
oct137037152140
935835044367
1012758864992
115458057125
122580b02514
131284444373
1489071a1d6
154ea1be697
hex2f87cd460

12758864992 has 24 divisors (see below), whose sum is σ = 25279019136. Its totient is φ = 6338796672.

The previous prime is 12758864983. The next prime is 12758865023. The reversal of 12758864992 is 29946885721.

12758864992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12758864992.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264768 + ... + 1274815.

It is an arithmetic number, because the mean of its divisors is an integer number (1053292464).

Almost surely, 212758864992 is an apocalyptic number.

It is an amenable number.

12758864992 is a deficient number, since it is larger than the sum of its proper divisors (12520154144).

12758864992 is a wasteful number, since it uses less digits than its factorization.

12758864992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539750 (or 2539742 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 61.

The spelling of 12758864992 in words is "twelve billion, seven hundred fifty-eight million, eight hundred sixty-four thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 32 157 314 628 1256 2512 5024 2539583 5079166 10158332 20316664 40633328 81266656 398714531 797429062 1594858124 3189716248 6379432496 12758864992