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13159960885 = 58213205837
BaseRepresentation
bin11000100000110010…
…10001000100110101
31020222010210021112201
430100121101010311
5203422422222020
610013503344501
7644054551621
oct142031210465
936863707481
1013159960885
115643500435
1226732b2131
13131957a706
148cbac8181
155204eca0a
hex310651135

13159960885 has 8 divisors (see below), whose sum is σ = 15811193016. Its totient is φ = 10515142080.

The previous prime is 13159960871. The next prime is 13159960963. The reversal of 13159960885 is 58806995131.

It can be written as a sum of positive squares in 4 ways, for example, as 1103701284 + 12056259601 = 33222^2 + 109801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13159960885 - 231 = 11012477237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1598814 + ... + 1607023.

It is an arithmetic number, because the mean of its divisors is an integer number (1976399127).

Almost surely, 213159960885 is an apocalyptic number.

It is an amenable number.

13159960885 is a deficient number, since it is larger than the sum of its proper divisors (2651232131).

13159960885 is an equidigital number, since it uses as much as digits as its factorization.

13159960885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206663.

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 13159960885 in words is "thirteen billion, one hundred fifty-nine million, nine hundred sixty thousand, eight hundred eighty-five".

Divisors: 1 5 821 4105 3205837 16029185 2631992177 13159960885