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12868078012 = 2229758314629
BaseRepresentation
bin10111111101111111…
…10100100110111100
31020012210120002111221
423332333310212330
5202323211444022
65524515323124
7633611600266
oct137677644674
936183502457
1012868078012
115503770519
1225b15b04a4
1312a0c6245a
148a1028b36
15504a93cc7
hex2feff49bc

12868078012 has 24 divisors (see below), whose sum is σ = 23300323200. Its totient is φ = 6210931776.

The previous prime is 12868078007. The next prime is 12868078123. The reversal of 12868078012 is 21087086821.

It is a self number, because there is not a number n which added to its sum of digits gives 12868078012.

It is a congruent number.

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, 872314 + ... + 886942.

It is an arithmetic number, because the mean of its divisors is an integer number (970846800).

Almost surely, 212868078012 is an apocalyptic number.

It is an amenable number.

12868078012 is a deficient number, since it is larger than the sum of its proper divisors (10432245188).

12868078012 is a wasteful number, since it uses less digits than its factorization.

12868078012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22245 (or 22243 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 43.

The spelling of 12868078012 in words is "twelve billion, eight hundred sixty-eight million, seventy-eight thousand, twelve".

Divisors: 1 2 4 29 58 116 7583 14629 15166 29258 30332 58516 219907 424241 439814 848482 879628 1696964 110931707 221863414 443726828 3217019503 6434039006 12868078012