Base | Representation |
---|---|
bin | 10111111101111111… |
… | …10100100110111100 |
3 | 1020012210120002111221 |
4 | 23332333310212330 |
5 | 202323211444022 |
6 | 5524515323124 |
7 | 633611600266 |
oct | 137677644674 |
9 | 36183502457 |
10 | 12868078012 |
11 | 5503770519 |
12 | 25b15b04a4 |
13 | 12a0c6245a |
14 | 8a1028b36 |
15 | 504a93cc7 |
hex | 2feff49bc |
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".
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