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12642925267 = 72258018883
BaseRepresentation
bin10111100011001001…
…11011101011010011
31012122002220011000101
423301210323223103
5201343042102032
65450313433231
7625206043300
oct136144735323
935562804011
1012642925267
1153a8668975
12254a10b817
13126640c58b
1487d17a0a7
154dee1bde7
hex2f193bad3

12642925267 has 6 divisors (see below), whose sum is σ = 14707076388. Its totient is φ = 10836793044.

The previous prime is 12642925237. The next prime is 12642925297. The reversal of 12642925267 is 76252924621.

It is an interprime number because it is at equal distance from previous prime (12642925237) and next prime (12642925297).

It is not a de Polignac number, because 12642925267 - 215 = 12642892499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12642925237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129009393 + ... + 129009490.

It is an arithmetic number, because the mean of its divisors is an integer number (2451179398).

Almost surely, 212642925267 is an apocalyptic number.

12642925267 is a deficient number, since it is larger than the sum of its proper divisors (2064151121).

12642925267 is an equidigital number, since it uses as much as digits as its factorization.

12642925267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258018897 (or 258018890 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The spelling of 12642925267 in words is "twelve billion, six hundred forty-two million, nine hundred twenty-five thousand, two hundred sixty-seven".

Divisors: 1 7 49 258018883 1806132181 12642925267