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13079493729 = 322303963079
BaseRepresentation
bin11000010111001100…
…10011110001100001
31020202112101010100200
430023212103301201
5203241322244404
610001510535413
7642056601531
oct141346236141
936675333320
1013079493729
115602040255
122650367569
1313059b5803
148c113d4c1
15518405839
hex30b993c61

13079493729 has 12 divisors (see below), whose sum is σ = 18893721600. Its totient is φ = 8719145784.

The previous prime is 13079493683. The next prime is 13079493737. The reversal of 13079493729 is 92739497031.

13079493729 is a `hidden beast` number, since 13 + 0 + 79 + 493 + 72 + 9 = 666.

It is not a de Polignac number, because 13079493729 - 213 = 13079485537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13079493769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175812 + ... + 238890.

It is an arithmetic number, because the mean of its divisors is an integer number (1574476800).

Almost surely, 213079493729 is an apocalyptic number.

It is an amenable number.

13079493729 is a deficient number, since it is larger than the sum of its proper divisors (5814227871).

13079493729 is a wasteful number, since it uses less digits than its factorization.

13079493729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86124 (or 86121 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 54.

The spelling of 13079493729 in words is "thirteen billion, seventy-nine million, four hundred ninety-three thousand, seven hundred twenty-nine".

Divisors: 1 3 9 23039 63079 69117 189237 207351 567711 1453277081 4359831243 13079493729