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13520874472 = 237241444187
BaseRepresentation
bin11001001011110100…
…00010101111101000
31021220021220120220121
430211322002233220
5210142320440342
610113355133024
7656026352050
oct144572025750
937807816817
1013520874472
1158091aa126
122754144174
131376285251
149239d6560
15542040067
hex325e82be8

13520874472 has 16 divisors (see below), whose sum is σ = 28973302560. Its totient is φ = 5794660464.

The previous prime is 13520874457. The next prime is 13520874473. The reversal of 13520874472 is 27447802531.

13520874472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13520874473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120722038 + ... + 120722149.

It is an arithmetic number, because the mean of its divisors is an integer number (1810831410).

Almost surely, 213520874472 is an apocalyptic number.

It is an amenable number.

13520874472 is an abundant number, since it is smaller than the sum of its proper divisors (15452428088).

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

13520874472 is a wasteful number, since it uses less digits than its factorization.

13520874472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241444200 (or 241444196 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 13520874472 in words is "thirteen billion, five hundred twenty million, eight hundred seventy-four thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 241444187 482888374 965776748 1690109309 1931553496 3380218618 6760437236 13520874472