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12700688818 = 2411392115281
BaseRepresentation
bin10111101010000010…
…10010000110110010
31012210010120211201011
423311001102012302
5202002334020233
65500135501134
7626510034166
oct136501220662
935703524634
1012700688818
115428231544
1225655277aa
1312753855ac
14886ad4ca6
154e502c0cd
hex2f50521b2

12700688818 has 32 divisors (see below), whose sum is σ = 19752989760. Its totient is φ = 6120576000.

The previous prime is 12700688807. The next prime is 12700688821. The reversal of 12700688818 is 81888600721.

It is a super-2 number, since 2×127006888182 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2402338 + ... + 2407618.

It is an arithmetic number, because the mean of its divisors is an integer number (617280930).

Almost surely, 212700688818 is an apocalyptic number.

12700688818 is a deficient number, since it is larger than the sum of its proper divisors (7052300942).

12700688818 is a wasteful number, since it uses less digits than its factorization.

12700688818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5674.

The product of its (nonzero) digits is 344064, while the sum is 49.

The spelling of 12700688818 in words is "twelve billion, seven hundred million, six hundred eighty-eight thousand, eight hundred eighteen".

Divisors: 1 2 41 82 139 211 278 422 5281 5699 8651 10562 11398 17302 29329 58658 216521 433042 734059 1114291 1202489 1468118 2228582 2404978 30096419 45685931 60192838 91371862 154886449 309772898 6350344409 12700688818