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13125487925628 = 223213118012376571
BaseRepresentation
bin1011111100000000010000…
…0010111001100101111100
31201110210011211011122110200
42333000010002321211330
53210021444402110003
643525433234203500
72523166553356101
oct277000402714574
951423154148420
1013125487925628
114200540831641
12157b983423590
13742960b19650
143353c4160aa8
1517b6563246a3
hexbf0040b997c

13125487925628 has 72 divisors (see below), whose sum is σ = 35733537695856. Its totient is φ = 4038267744000.

The previous prime is 13125487925623. The next prime is 13125487925681. The reversal of 13125487925628 is 82652978452131.

It is a happy number.

13125487925628 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 5 + 487 + 92 + 5 + 62 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125487925623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4334583 + ... + 6711153.

Almost surely, 213125487925628 is an apocalyptic number.

13125487925628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13125487925628 is an abundant number, since it is smaller than the sum of its proper divisors (22608049770228).

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

13125487925628 is a wasteful number, since it uses less digits than its factorization.

13125487925628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388395 (or 2388390 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 13125487925628 in words is "thirteen trillion, one hundred twenty-five billion, four hundred eighty-seven million, nine hundred twenty-five thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 11801 23602 35403 47204 70806 106209 141612 153413 212418 306826 424836 460239 613652 920478 1380717 1840956 2376571 2761434 4753142 5522868 7129713 9506284 14259426 21389139 28518852 30895423 42778278 61790846 85556556 92686269 123581692 185372538 278058807 370745076 556117614 1112235228 28045914371 56091828742 84137743113 112183657484 168275486226 252413229339 336550972452 364596886823 504826458678 729193773646 1009652917356 1093790660469 1458387547292 2187581320938 3281371981407 4375162641876 6562743962814 13125487925628