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12668886876 = 2233773938611
BaseRepresentation
bin10111100110001111…
…11101111101011100
31012200220202010122110
423303013331331130
5201421213340001
65453042114020
7625642522152
oct136307757534
935626663573
1012668886876
115411290248
12255694b910
13126b8cc389
148827b73d2
154e23493d6
hex2f31fdf5c

12668886876 has 48 divisors (see below), whose sum is σ = 30401544320. Its totient is φ = 4103161920.

The previous prime is 12668886871. The next prime is 12668886877. The reversal of 12668886876 is 67868886621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668886871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308811 + ... + 347421.

Almost surely, 212668886876 is an apocalyptic number.

It is an amenable number.

12668886876 is an abundant number, since it is smaller than the sum of its proper divisors (17732657444).

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

12668886876 is a wasteful number, since it uses less digits than its factorization.

12668886876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39394 (or 39392 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 66.

The spelling of 12668886876 in words is "twelve billion, six hundred sixty-eight million, eight hundred eighty-six thousand, eight hundred seventy-six".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 739 1478 2217 2956 4434 8868 27343 38611 54686 77222 82029 109372 115833 154444 164058 231666 328116 463332 1428607 2857214 4285821 5714428 8571642 17143284 28533529 57067058 85600587 114134116 171201174 342402348 1055740573 2111481146 3167221719 4222962292 6334443438 12668886876