Base | Representation |
---|---|
bin | 10111110010000100… |
… | …10101011110011010 |
3 | 1012221211101100021210 |
4 | 23321002111132122 |
5 | 202122111324001 |
6 | 5510544043550 |
7 | 631255556310 |
oct | 137102253632 |
9 | 35854340253 |
10 | 12768073626 |
11 | 5462276770 |
12 | 25840035b6 |
13 | 1286319969 |
14 | 891a360b0 |
15 | 4eaddcdd6 |
hex | 2f909579a |
12768073626 has 128 divisors (see below), whose sum is σ = 32306688000. Its totient is φ = 3267855360.
The previous prime is 12768073609. The next prime is 12768073667. The reversal of 12768073626 is 62637086721.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10388380 + ... + 10389608.
It is an arithmetic number, because the mean of its divisors is an integer number (252396000).
Almost surely, 212768073626 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12768073626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16153344000).
12768073626 is an abundant number, since it is smaller than the sum of its proper divisors (19538614374).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12768073626 is a wasteful number, since it uses less digits than its factorization.
12768073626 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1564.
The product of its (nonzero) digits is 1016064, while the sum is 48.
The spelling of 12768073626 in words is "twelve billion, seven hundred sixty-eight million, seventy-three thousand, six hundred twenty-six".
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