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113813172980 = 225132617167269
BaseRepresentation
bin110100111111111001…
…0110011001011110100
3101212202211120020022222
41221333302303023310
53331042133013410
6124141323141512
711136253002563
oct1517762631364
9355684506288
10113813172980
11442a4629441
121a083974898
13a96a4c7190
1457197c3bda
152e61c66955
hex1a7fcb32f4

113813172980 has 48 divisors (see below), whose sum is σ = 257492761680. Its totient is φ = 42007016448.

The previous prime is 113813172971. The next prime is 113813173003. The reversal of 113813172980 is 89271318311.

It can be written as a sum of positive squares in 8 ways, for example, as 1060935184 + 112752237796 = 32572^2 + 335786^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 596786 + ... + 764054.

It is an arithmetic number, because the mean of its divisors is an integer number (5364432535).

Almost surely, 2113813172980 is an apocalyptic number.

113813172980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113813172980 is an abundant number, since it is smaller than the sum of its proper divisors (143679588700).

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

113813172980 is a wasteful number, since it uses less digits than its factorization.

113813172980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169908 (or 169906 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 113813172980 in words is "one hundred thirteen billion, eight hundred thirteen million, one hundred seventy-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 2617 5234 10468 13085 26170 34021 52340 68042 136084 167269 170105 334538 340210 669076 680420 836345 1672690 2174497 3345380 4348994 8697988 10872485 21744970 43489940 437742973 875485946 1750971892 2188714865 4377429730 5690658649 8754859460 11381317298 22762634596 28453293245 56906586490 113813172980