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115980976520 = 23510727098359
BaseRepresentation
bin110110000000100000…
…0010100000110001000
3102002100220200001201222
41230001000110012020
53400012112222040
6125140402501212
711244055014533
oct1540100240610
9362326601658
10115980976520
1145207268312
121a589964808
13ac24664b76
14588367da1a
15303c223bb5
hex1b01014188

115980976520 has 32 divisors (see below), whose sum is σ = 263396059200. Its totient is φ = 45958815168.

The previous prime is 115980976481. The next prime is 115980976523. The reversal of 115980976520 is 25679089511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (115980976523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13544900 + ... + 13553459.

It is an arithmetic number, because the mean of its divisors is an integer number (8231126850).

Almost surely, 2115980976520 is an apocalyptic number.

115980976520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115980976520 is an abundant number, since it is smaller than the sum of its proper divisors (147415082680).

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

115980976520 is a wasteful number, since it uses less digits than its factorization.

115980976520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27098477 (or 27098473 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 53.

The spelling of 115980976520 in words is "one hundred fifteen billion, nine hundred eighty million, nine hundred seventy-six thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 107 214 428 535 856 1070 2140 4280 27098359 54196718 108393436 135491795 216786872 270983590 541967180 1083934360 2899524413 5799048826 11598097652 14497622065 23196195304 28995244130 57990488260 115980976520