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13512013112 = 2313129923203
BaseRepresentation
bin11001001010110000…
…01111010100111000
31021212200020101102002
430211120033110320
5210133033404422
610112441200132
7655561134143
oct144530172470
937780211362
1013512013112
1158041a7494
122751190048
1313744a1a40
1492276b05a
1554138e692
hex32560f538

13512013112 has 16 divisors (see below), whose sum is σ = 27283872840. Its totient is φ = 6236313696.

The previous prime is 13512013111. The next prime is 13512013133. The reversal of 13512013112 is 21131021531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13512013111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64961498 + ... + 64961705.

Almost surely, 213512013112 is an apocalyptic number.

It is an amenable number.

13512013112 is an abundant number, since it is smaller than the sum of its proper divisors (13771859728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13512013112 is a wasteful number, since it uses less digits than its factorization.

13512013112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129923222 (or 129923218 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 13512013112 its reverse (21131021531), we get a palindrome (34643034643).

The spelling of 13512013112 in words is "thirteen billion, five hundred twelve million, thirteen thousand, one hundred twelve".

Divisors: 1 2 4 8 13 26 52 104 129923203 259846406 519692812 1039385624 1689001639 3378003278 6756006556 13512013112