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12613514864 = 244119227919
BaseRepresentation
bin10111011111101001…
…01111011001110000
31012120001112221112012
423233310233121300
5201313024433424
65443343222052
7624401051546
oct135764573160
935501487465
1012613514864
115393000455
1225402a7928
1312602b2a82
148792c1d96
154dc55cb0e
hex2efd2f670

12613514864 has 20 divisors (see below), whose sum is σ = 25034751840. Its totient is φ = 6152933760.

The previous prime is 12613514831. The next prime is 12613514909. The reversal of 12613514864 is 46841531621.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9613304 + ... + 9614615.

It is an arithmetic number, because the mean of its divisors is an integer number (1251737592).

Almost surely, 212613514864 is an apocalyptic number.

It is an amenable number.

12613514864 is a deficient number, since it is larger than the sum of its proper divisors (12421236976).

12613514864 is a wasteful number, since it uses less digits than its factorization.

12613514864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19227968 (or 19227962 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The spelling of 12613514864 in words is "twelve billion, six hundred thirteen million, five hundred fourteen thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 41 82 164 328 656 19227919 38455838 76911676 153823352 307646704 788344679 1576689358 3153378716 6306757432 12613514864