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12052531513 = 112610741969
BaseRepresentation
bin10110011100110001…
…10000100100111001
31011002221222001001001
423032120300210321
5144140422002023
65311543325001
7604446553561
oct131630604471
934087861031
1012052531513
115125381350
122404450761
1311a0cc8269
148249b3da1
154a819a6ad
hex2ce630939

12052531513 has 8 divisors (see below), whose sum is σ = 13149033120. Its totient is φ = 10956166080.

The previous prime is 12052531501. The next prime is 12052531537. The reversal of 12052531513 is 31513525021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12052531513 - 225 = 12018977081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12052531583) 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, 266193 + ... + 308161.

It is an arithmetic number, because the mean of its divisors is an integer number (1643629140).

Almost surely, 212052531513 is an apocalyptic number.

It is an amenable number.

12052531513 is a deficient number, since it is larger than the sum of its proper divisors (1096501607).

12052531513 is a wasteful number, since it uses less digits than its factorization.

12052531513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68087.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 12052531513 in words is "twelve billion, fifty-two million, five hundred thirty-one thousand, five hundred thirteen".

Divisors: 1 11 26107 41969 287177 461659 1095684683 12052531513