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13129635873 = 319413355733
BaseRepresentation
bin11000011101001011…
…00101100000100001
31020220000201121110010
430032211211200201
5203342141321443
610010501355133
7643236030534
oct141645454041
936800647403
1013129635873
115628378842
122665108aa9
1313131c0813
148c7a72a1b
1551ca0c733
hex30e965821

13129635873 has 16 divisors (see below), whose sum is σ = 18432348480. Its totient is φ = 8290246464.

The previous prime is 13129635863. The next prime is 13129635889. The reversal of 13129635873 is 37853692131.

It is not a de Polignac number, because 13129635873 - 213 = 13129627681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13129635803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207715 + ... + 263447.

It is an arithmetic number, because the mean of its divisors is an integer number (1152021780).

Almost surely, 213129635873 is an apocalyptic number.

It is an amenable number.

13129635873 is a deficient number, since it is larger than the sum of its proper divisors (5302712607).

13129635873 is a wasteful number, since it uses less digits than its factorization.

13129635873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59888.

The product of its digits is 816480, while the sum is 48.

The spelling of 13129635873 in words is "thirteen billion, one hundred twenty-nine million, six hundred thirty-five thousand, eight hundred seventy-three".

Divisors: 1 3 19 57 4133 12399 55733 78527 167199 235581 1058927 3176781 230344489 691033467 4376545291 13129635873