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12924866186 = 2109397149341
BaseRepresentation
bin11000000100110000…
…11100111010001010
31020100202102020020122
430002120130322022
5202432231204221
65534304423242
7635201356421
oct140230347212
936322366218
1012924866186
1155328282a1
122608617b22
1312ac95651b
148a87ac2b8
15509a5eeab
hex30261ce8a

12924866186 has 16 divisors (see below), whose sum is σ = 19614578280. Its totient is φ = 6386973120.

The previous prime is 12924866183. The next prime is 12924866197. The reversal of 12924866186 is 68166842921.

It can be written as a sum of positive squares in 4 ways, for example, as 12283510561 + 641355625 = 110831^2 + 25325^2 .

It is a Smith number, since the sum of its digits (53) 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 (12924866183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11876 + ... + 161216.

Almost surely, 212924866186 is an apocalyptic number.

12924866186 is a deficient number, since it is larger than the sum of its proper divisors (6689712094).

12924866186 is a wasteful number, since it uses less digits than its factorization.

12924866186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149849.

The product of its digits is 1990656, while the sum is 53.

The spelling of 12924866186 in words is "twelve billion, nine hundred twenty-four million, eight hundred sixty-six thousand, one hundred eighty-six".

Divisors: 1 2 109 218 397 794 43273 86546 149341 298682 16278169 32556338 59288377 118576754 6462433093 12924866186