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12257325745 = 572296432683
BaseRepresentation
bin10110110101001011…
…11111001010110001
31011122020022122220121
423122211333022301
5200100333410440
65344141010241
7612514356400
oct133245771261
934566278817
1012257325745
11521aa39285
122460b53981
131204570792
14843c83637
154bb15034a
hex2da97f2b1

12257325745 has 48 divisors (see below), whose sum is σ = 17734368960. Its totient is φ = 8099554176.

The previous prime is 12257325739. The next prime is 12257325763. The reversal of 12257325745 is 54752375221.

It is not a de Polignac number, because 12257325745 - 29 = 12257325233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4567174 + ... + 4569856.

It is an arithmetic number, because the mean of its divisors is an integer number (369466020).

Almost surely, 212257325745 is an apocalyptic number.

It is an amenable number.

12257325745 is a deficient number, since it is larger than the sum of its proper divisors (5477043215).

12257325745 is a wasteful number, since it uses less digits than its factorization.

12257325745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374 (or 3367 counting only the distinct ones).

The product of its digits is 588000, while the sum is 43.

The spelling of 12257325745 in words is "twelve billion, two hundred fifty-seven million, three hundred twenty-five thousand, seven hundred forty-five".

Divisors: 1 5 7 29 35 49 145 203 245 643 1015 1421 2683 3215 4501 7105 13415 18647 18781 22505 31507 77807 93235 93905 130529 131467 157535 389035 544649 652645 657335 913703 1725169 2723245 3812543 4568515 8625845 12076183 19062715 50029901 60380915 84533281 250149505 350209307 422666405 1751046535 2451465149 12257325745