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13568135480 = 235661513167
BaseRepresentation
bin11001010001011100…
…10101000100111000
31022000120211200211022
430220232111010320
5210241420313410
610122204122012
7660142151204
oct145056250470
938016750738
1013568135480
11583294a009
122767b36308
131382cc1a43
14929db9b04
15546278455
hex328b95138

13568135480 has 32 divisors (see below), whose sum is σ = 30574549440. Its totient is φ = 5419032960.

The previous prime is 13568135479. The next prime is 13568135491. The reversal of 13568135480 is 8453186531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230144 + ... + 283023.

It is an arithmetic number, because the mean of its divisors is an integer number (955454670).

Almost surely, 213568135480 is an apocalyptic number.

13568135480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13568135480 is an abundant number, since it is smaller than the sum of its proper divisors (17006413960).

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

13568135480 is a wasteful number, since it uses less digits than its factorization.

13568135480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513839 (or 513835 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 13568135480 in words is "thirteen billion, five hundred sixty-eight million, one hundred thirty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 661 1322 2644 3305 5288 6610 13220 26440 513167 1026334 2052668 2565835 4105336 5131670 10263340 20526680 339203387 678406774 1356813548 1696016935 2713627096 3392033870 6784067740 13568135480