Base | Representation |
---|---|
bin | 100000000001000110… |
… | …0010011100001110010 |
3 | 20120110202000202001200 |
4 | 1000002030103201302 |
5 | 2111303100210012 |
6 | 51330341112030 |
7 | 4652562353265 |
oct | 1000214234162 |
9 | 216422022050 |
10 | 68756256882 |
11 | 271831294a5 |
12 | 113aa3b8616 |
13 | 6639878991 |
14 | 348377acdc |
15 | 1bc63343dc |
hex | 1002313872 |
68756256882 has 12 divisors (see below), whose sum is σ = 148971889950. Its totient is φ = 22918752288.
The previous prime is 68756256851. The next prime is 68756256887. The reversal of 68756256882 is 28865265786.
68756256882 is a `hidden beast` number, since 6 + 8 + 7 + 5 + 62 + 568 + 8 + 2 = 666.
It can be written as a sum of positive squares in only one way, i.e., 35204641641 + 33551615241 = 187629^2 + 183171^2 .
It is not an unprimeable number, because it can be changed into a prime (68756256887) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1909896007 + ... + 1909896042.
Almost surely, 268756256882 is an apocalyptic number.
68756256882 is an abundant number, since it is smaller than the sum of its proper divisors (80215633068).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68756256882 is a wasteful number, since it uses less digits than its factorization.
68756256882 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3819792057 (or 3819792054 counting only the distinct ones).
The product of its digits is 77414400, while the sum is 63.
The spelling of 68756256882 in words is "sixty-eight billion, seven hundred fifty-six million, two hundred fifty-six thousand, eight hundred eighty-two".
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