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12648934852 = 2271165726879
BaseRepresentation
bin10111100011110111…
…10110110111000100
31012122112012110121121
423301323312313010
5201401111403402
65451050323324
7625311113041
oct136173666704
935575173547
1012648934852
115400aa2a74
122550129544
131267734a48
1487dca21c8
154e0707837
hex2f1ef6dc4

12648934852 has 24 divisors (see below), whose sum is σ = 22461788160. Its totient is φ = 6231395520.

The previous prime is 12648934849. The next prime is 12648934861. The reversal of 12648934852 is 25843984621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12648934852.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457149 + ... + 484027.

It is an arithmetic number, because the mean of its divisors is an integer number (935907840).

Almost surely, 212648934852 is an apocalyptic number.

It is an amenable number.

12648934852 is a deficient number, since it is larger than the sum of its proper divisors (9812853308).

12648934852 is a wasteful number, since it uses less digits than its factorization.

12648934852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28611 (or 28609 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The spelling of 12648934852 in words is "twelve billion, six hundred forty-eight million, nine hundred thirty-four thousand, eight hundred fifty-two".

Divisors: 1 2 4 71 142 284 1657 3314 6628 26879 53758 107516 117647 235294 470588 1908409 3816818 7633636 44538503 89077006 178154012 3162233713 6324467426 12648934852