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12137896825 = 521947335399
BaseRepresentation
bin10110100110111100…
…11001101101111001
31011022220121001020021
423103132121231321
5144324300144300
65324233130441
7606534264205
oct132336315571
934286531207
1012137896825
11516958759a
122428b59a21
1311b58b6792
14832075b05
154b090dd1a
hex2d3799b79

12137896825 has 24 divisors (see below), whose sum is σ = 15849432000. Its totient is φ = 9195600960.

The previous prime is 12137896751. The next prime is 12137896871. The reversal of 12137896825 is 52869873121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-12137896825 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2245476 + ... + 2250874.

It is an arithmetic number, because the mean of its divisors is an integer number (660393000).

Almost surely, 212137896825 is an apocalyptic number.

It is an amenable number.

12137896825 is a deficient number, since it is larger than the sum of its proper divisors (3711535175).

12137896825 is a wasteful number, since it uses less digits than its factorization.

12137896825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10161 (or 10156 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The spelling of 12137896825 in words is "twelve billion, one hundred thirty-seven million, eight hundred ninety-six thousand, eight hundred twenty-five".

Divisors: 1 5 19 25 95 475 4733 5399 23665 26995 89927 102581 118325 134975 449635 512905 2248175 2564525 25553467 127767335 485515873 638836675 2427579365 12137896825