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13525000531 = 72276020419
BaseRepresentation
bin11001001100010011…
…10010000101010011
31021220120200012210121
430212021302011103
5210144400004111
610114023411111
7656106415300
oct144611620523
937816605717
1013525000531
115810568099
1227555b3a97
13137709b2c3
1492438c0a7
155425a7871
hex326272153

13525000531 has 6 divisors (see below), whose sum is σ = 15733163940. Its totient is φ = 11592857556.

The previous prime is 13525000519. The next prime is 13525000537. The reversal of 13525000531 is 13500052531.

It is not a de Polignac number, because 13525000531 - 25 = 13525000499 is a prime.

It is a super-2 number, since 2×135250005312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13525000496 and 13525000505.

It is not an unprimeable number, because it can be changed into a prime (13525000537) 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, 138010161 + ... + 138010258.

It is an arithmetic number, because the mean of its divisors is an integer number (2622193990).

Almost surely, 213525000531 is an apocalyptic number.

13525000531 is a deficient number, since it is larger than the sum of its proper divisors (2208163409).

13525000531 is an equidigital number, since it uses as much as digits as its factorization.

13525000531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276020433 (or 276020426 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The spelling of 13525000531 in words is "thirteen billion, five hundred twenty-five million, five hundred thirty-one", and thus it is an aban number.

Divisors: 1 7 49 276020419 1932142933 13525000531