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27913732680 = 2335972398087
BaseRepresentation
bin11001111111110010…
…011100001001001000
32200001100121112122010
4121333302130021020
5424131403421210
620453504055520
72005504545561
oct317762341110
980040545563
1027913732680
1110924635569
1254b03045a0
13282b0a4ab2
1414cb335168
15ad58c5920
hex67fc9c248

27913732680 has 64 divisors (see below), whose sum is σ = 84604544640. Its totient is φ = 7366920192.

The previous prime is 27913732669. The next prime is 27913732711. The reversal of 27913732680 is 8623731972.

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, 1187404 + ... + 1210683.

It is an arithmetic number, because the mean of its divisors is an integer number (1321946010).

Almost surely, 227913732680 is an apocalyptic number.

27913732680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27913732680 is an abundant number, since it is smaller than the sum of its proper divisors (56690811960).

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

27913732680 is a wasteful number, since it uses less digits than its factorization.

27913732680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398198 (or 2398194 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 27913732680 in words is "twenty-seven billion, nine hundred thirteen million, seven hundred thirty-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 97 120 194 291 388 485 582 776 970 1164 1455 1940 2328 2910 3880 5820 11640 2398087 4796174 7194261 9592348 11990435 14388522 19184696 23980870 28777044 35971305 47961740 57554088 71942610 95923480 143885220 232614439 287770440 465228878 697843317 930457756 1163072195 1395686634 1860915512 2326144390 2791373268 3489216585 4652288780 5582746536 6978433170 9304577560 13956866340 27913732680