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12657228982 = 241271569581
BaseRepresentation
bin10111100100110110…
…11111110010110110
31012200002210212000121
423302123133302312
5201410222311412
65451544202154
7625441446136
oct136233376266
935602725017
1012657228982
115405748522
122552a6935a
13126937a008
14881020ac6
154e12e5107
hex2f26dfcb6

12657228982 has 16 divisors (see below), whose sum is σ = 19520714304. Its totient is φ = 6151464000.

The previous prime is 12657228971. The next prime is 12657229019. The reversal of 12657228982 is 28982275621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262569 + ... + 307012.

It is an arithmetic number, because the mean of its divisors is an integer number (1220044644).

Almost surely, 212657228982 is an apocalyptic number.

12657228982 is a deficient number, since it is larger than the sum of its proper divisors (6863485322).

12657228982 is a wasteful number, since it uses less digits than its factorization.

12657228982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569895.

The product of its digits is 1935360, while the sum is 52.

The spelling of 12657228982 in words is "twelve billion, six hundred fifty-seven million, two hundred twenty-eight thousand, nine hundred eighty-two".

Divisors: 1 2 41 82 271 542 11111 22222 569581 1139162 23352821 46705642 154356451 308712902 6328614491 12657228982