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13129960464 = 243330393427
BaseRepresentation
bin11000011101001101…
…10100110000010000
31020220001100002201000
430032212310300100
5203342232213324
610010512342000
7643241552055
oct141646646020
936801302630
1013129960464
11562857a6a5
122665244900
1313132a549a
148c7b1902c
1551ca739c9
hex30e9b4c10

13129960464 has 40 divisors (see below), whose sum is σ = 37687850720. Its totient is φ = 4376653344.

The previous prime is 13129960463. The next prime is 13129960471. The reversal of 13129960464 is 46406992131.

13129960464 is a `hidden beast` number, since 1 + 3 + 129 + 9 + 60 + 464 = 666.

It is not an unprimeable number, because it can be changed into a prime (13129960463) 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, 15196282 + ... + 15197145.

It is an arithmetic number, because the mean of its divisors is an integer number (942196268).

Almost surely, 213129960464 is an apocalyptic number.

It is an amenable number.

13129960464 is an abundant number, since it is smaller than the sum of its proper divisors (24557890256).

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

13129960464 is a wasteful number, since it uses less digits than its factorization.

13129960464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30393444 (or 30393432 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 13129960464 in words is "thirteen billion, one hundred twenty-nine million, nine hundred sixty thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 30393427 60786854 91180281 121573708 182360562 243147416 273540843 364721124 486294832 547081686 729442248 820622529 1094163372 1458884496 1641245058 2188326744 3282490116 4376653488 6564980232 13129960464