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13688840600 = 235268444203
BaseRepresentation
bin11001011111110101…
…10010000110011000
31022022222222011010022
430233322302012120
5211013320344400
610142155210012
7663136140161
oct145772620630
938288864108
1013688840600
115894aa2606
1227a0446908
1313a20048a6
1493c03a768
15551b6cb85
hex32feb2198

13688840600 has 24 divisors (see below), whose sum is σ = 31826554860. Its totient is φ = 5475536160.

The previous prime is 13688840591. The next prime is 13688840629. The reversal of 13688840600 is 604888631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34221902 + ... + 34222301.

Almost surely, 213688840600 is an apocalyptic number.

13688840600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13688840600 is an abundant number, since it is smaller than the sum of its proper divisors (18137714260).

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

13688840600 is a wasteful number, since it uses less digits than its factorization.

13688840600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68444219 (or 68444210 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 13688840600 in words is "thirteen billion, six hundred eighty-eight million, eight hundred forty thousand, six hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 68444203 136888406 273776812 342221015 547553624 684442030 1368884060 1711105075 2737768120 3422210150 6844420300 13688840600