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12749055627 = 3711371491641
BaseRepresentation
bin10111101111110011…
…10010011010001011
31012220111121010111110
423313321302122023
5202102224240002
65505024301403
7630635120250
oct136771623213
935814533443
1012749055627
115452567210
122579771863
1312823bb4c9
1488d2c5427
154e93d2e6c
hex2f7e7268b

12749055627 has 32 divisors (see below), whose sum is σ = 21766040064. Its totient is φ = 6443884800.

The previous prime is 12749055601. The next prime is 12749055643. The reversal of 12749055627 is 72655094721.

It is not a de Polignac number, because 12749055627 - 26 = 12749055563 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12749055827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 737274 + ... + 754367.

It is an arithmetic number, because the mean of its divisors is an integer number (680188752).

Almost surely, 212749055627 is an apocalyptic number.

12749055627 is a deficient number, since it is larger than the sum of its proper divisors (9016984437).

12749055627 is a wasteful number, since it uses less digits than its factorization.

12749055627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491699.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 12749055627 in words is "twelve billion, seven hundred forty-nine million, fifty-five thousand, six hundred twenty-seven".

Divisors: 1 3 7 11 21 33 37 77 111 231 259 407 777 1221 2849 8547 1491641 4474923 10441487 16408051 31324461 49224153 55190717 114856357 165572151 344569071 386335019 607097887 1159005057 1821293661 4249685209 12749055627