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13531274951080 = 235647522846791
BaseRepresentation
bin1100010011100111111011…
…0101100011100110101000
31202220120120211001100222111
43010321332311203212220
53233144022341413310
644440103142332104
72564413415232325
oct304717665434650
952816524040874
1013531274951080
114347643a4a8a7
12162655072a034
13771cbc3759b3
1434acbab33b4c
15186ea5cd728a
hexc4e7ed639a8

13531274951080 has 32 divisors (see below), whose sum is σ = 30492424909440. Its totient is φ = 5404144421440.

The previous prime is 13531274951059. The next prime is 13531274951087. The reversal of 13531274951080 is 8015947213531.

It is not an unprimeable number, because it can be changed into a prime (13531274951087) 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, 261397516 + ... + 261449275.

It is an arithmetic number, because the mean of its divisors is an integer number (952888278420).

Almost surely, 213531274951080 is an apocalyptic number.

13531274951080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13531274951080 is an abundant number, since it is smaller than the sum of its proper divisors (16961149958360).

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

13531274951080 is a wasteful number, since it uses less digits than its factorization.

13531274951080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522847449 (or 522847445 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 13531274951080 in words is "thirteen trillion, five hundred thirty-one billion, two hundred seventy-four million, nine hundred fifty-one thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 647 1294 2588 3235 5176 6470 12940 25880 522846791 1045693582 2091387164 2614233955 4182774328 5228467910 10456935820 20913871640 338281873777 676563747554 1353127495108 1691409368885 2706254990216 3382818737770 6765637475540 13531274951080