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12873686808 = 2331972722861
BaseRepresentation
bin10111111110101010…
…01101111100011000
31020020012010001100010
423333111031330120
5202331130434213
65525235441520
7634010350413
oct137725157430
936205101303
1012873686808
115506951494
1225b34562a0
1312a2177378
148a1a88b7a
15505300ac3
hex2ff54df18

12873686808 has 32 divisors (see below), whose sum is σ = 32347600560. Its totient is φ = 4269444480.

The previous prime is 12873686783. The next prime is 12873686809. The reversal of 12873686808 is 80868637821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12873686809) 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, 1356703 + ... + 1366158.

Almost surely, 212873686808 is an apocalyptic number.

It is an amenable number.

12873686808 is an abundant number, since it is smaller than the sum of its proper divisors (19473913752).

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

12873686808 is a wasteful number, since it uses less digits than its factorization.

12873686808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723067 (or 2723063 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 12873686808 in words is "twelve billion, eight hundred seventy-three million, six hundred eighty-six thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 24 197 394 591 788 1182 1576 2364 4728 2722861 5445722 8168583 10891444 16337166 21782888 32674332 65348664 536403617 1072807234 1609210851 2145614468 3218421702 4291228936 6436843404 12873686808