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13512012055 = 523373175561
BaseRepresentation
bin11001001010110000…
…01111000100010111
31021212200020022221221
430211120033010113
5210133033341210
610112441151211
7655561131103
oct144530170427
937780208857
1013512012055
1158041a6713
12275118b507
1313744a1409
1492276a903
1554138e1da
hex32560f117

13512012055 has 16 divisors (see below), whose sum is σ = 17376675264. Its totient is φ = 10060174080.

The previous prime is 13512012023. The next prime is 13512012071. The reversal of 13512012055 is 55021021531.

It is not a de Polignac number, because 13512012055 - 25 = 13512012023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1583526 + ... + 1592035.

It is an arithmetic number, because the mean of its divisors is an integer number (1086042204).

Almost surely, 213512012055 is an apocalyptic number.

13512012055 is a deficient number, since it is larger than the sum of its proper divisors (3864663209).

13512012055 is a wasteful number, since it uses less digits than its factorization.

13512012055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175626.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 13512012055 its reverse (55021021531), we get a palindrome (68533033586).

The spelling of 13512012055 in words is "thirteen billion, five hundred twelve million, twelve thousand, fifty-five".

Divisors: 1 5 23 37 115 185 851 4255 3175561 15877805 73037903 117495757 365189515 587478785 2702402411 13512012055