Base | Representation |
---|---|
bin | 111111100100010110… |
… | …110110100001001000 |
3 | 20112011212011002012000 |
4 | 333210112312201020 |
5 | 2104241430031120 |
6 | 51204540351000 |
7 | 4634303630646 |
oct | 774426664110 |
9 | 215155132160 |
10 | 68255705160 |
11 | 26a46625595 |
12 | 1128a845460 |
13 | 6589c5c726 |
14 | 34370c0196 |
15 | 1b9740c990 |
hex | fe45b6848 |
68255705160 has 256 divisors, whose sum is σ = 244300147200. Its totient is φ = 16889241600.
The previous prime is 68255705137. The next prime is 68255705173. The reversal of 68255705160 is 6150755286.
68255705160 is a `hidden beast` number, since 6 + 8 + 25 + 570 + 51 + 6 + 0 = 666.
68255705160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (45).
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, 1277380 + ... + 1329740.
It is an arithmetic number, because the mean of its divisors is an integer number (954297450).
Almost surely, 268255705160 is an apocalyptic number.
68255705160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68255705160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122150073600).
68255705160 is an abundant number, since it is smaller than the sum of its proper divisors (176044442040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68255705160 is a wasteful number, since it uses less digits than its factorization.
68255705160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52469 (or 52459 counting only the distinct ones).
The product of its (nonzero) digits is 504000, while the sum is 45.
The spelling of 68255705160 in words is "sixty-eight billion, two hundred fifty-five million, seven hundred five thousand, one hundred sixty".
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