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12789744904 = 234347791053
BaseRepresentation
bin10111110100101010…
…00000010100001000
31020000100011100200201
423322111000110020
5202143133314104
65513040341544
7631641016006
oct137225002410
936010140621
1012789744904
115473528712
12258b3148b4
13128a9669c1
14894877a76
154ecc6e0a4
hex2fa540508

12789744904 has 32 divisors (see below), whose sum is σ = 25060590720. Its totient is φ = 6113249856.

The previous prime is 12789744901. The next prime is 12789745013. The reversal of 12789744904 is 40944798721.

It is not an unprimeable number, because it can be changed into a prime (12789744901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379359 + ... + 411694.

It is an arithmetic number, because the mean of its divisors is an integer number (783143460).

Almost surely, 212789744904 is an apocalyptic number.

It is an amenable number.

12789744904 is a deficient number, since it is larger than the sum of its proper divisors (12270845816).

12789744904 is a wasteful number, since it uses less digits than its factorization.

12789744904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791149 (or 791145 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 12789744904 in words is "twelve billion, seven hundred eighty-nine million, seven hundred forty-four thousand, nine hundred four".

Divisors: 1 2 4 8 43 47 86 94 172 188 344 376 2021 4042 8084 16168 791053 1582106 3164212 6328424 34015279 37179491 68030558 74358982 136061116 148717964 272122232 297435928 1598718113 3197436226 6394872452 12789744904