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12257625772 = 227297644731
BaseRepresentation
bin10110110101001110…
…01000011010101100
31011122020212220110201
423122213020122230
5200100423011042
65344151243244
7612520046200
oct133247103254
934566786421
1012257625772
115220123737
122461079524
131204647202
14843d20b00
154bb1ae1b7
hex2da9c86ac

12257625772 has 36 divisors (see below), whose sum is σ = 25210310664. Its totient is φ = 5199102720.

The previous prime is 12257625769. The next prime is 12257625797. The reversal of 12257625772 is 27752675221.

12257625772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 303354 + ... + 341377.

Almost surely, 212257625772 is an apocalyptic number.

It is an amenable number.

12257625772 is an abundant number, since it is smaller than the sum of its proper divisors (12952684892).

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

12257625772 is a wasteful number, since it uses less digits than its factorization.

12257625772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644846 (or 644837 counting only the distinct ones).

The product of its digits is 823200, while the sum is 46.

The spelling of 12257625772 in words is "twelve billion, two hundred fifty-seven million, six hundred twenty-five thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 49 97 98 194 196 388 679 1358 2716 4753 9506 19012 644731 1289462 2578924 4513117 9026234 18052468 31591819 62538907 63183638 125077814 126367276 250155628 437772349 875544698 1751089396 3064406443 6128812886 12257625772