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12531025627 = 115110887077
BaseRepresentation
bin10111010101110100…
…00100011011011011
31012100022100001120021
423222322010123123
5201130420310002
65431235211311
7622346650261
oct135272043333
935308301507
1012531025627
11535048a02a
122518746b37
131249190683
1486c36c431
154d51b6737
hex2eae846db

12531025627 has 4 divisors (see below), whose sum is σ = 12541913856. Its totient is φ = 12520137400.

The previous prime is 12531025613. The next prime is 12531025681. The reversal of 12531025627 is 72652013521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12531025627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12531025592 and 12531025601.

It is not an unprimeable number, because it can be changed into a prime (12531025697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5442388 + ... + 5444689.

It is an arithmetic number, because the mean of its divisors is an integer number (3135478464).

Almost surely, 212531025627 is an apocalyptic number.

12531025627 is a deficient number, since it is larger than the sum of its proper divisors (10888229).

12531025627 is a wasteful number, since it uses less digits than its factorization.

12531025627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10888228.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 12531025627 in words is "twelve billion, five hundred thirty-one million, twenty-five thousand, six hundred twenty-seven".

Divisors: 1 1151 10887077 12531025627