Base | Representation |
---|---|
bin | 111111111111100111… |
… | …000011000011001001 |
3 | 20120100201111210110200 |
4 | 333333213003003021 |
5 | 2111211002420000 |
6 | 51322152402413 |
7 | 4651525213245 |
oct | 777747030311 |
9 | 216321453420 |
10 | 68712935625 |
11 | 2716072a604 |
12 | 113979a6409 |
13 | 66308bb4b9 |
14 | 347bb01425 |
15 | 1bc2628500 |
hex | fff9c30c9 |
68712935625 has 30 divisors (see below), whose sum is σ = 124025332002. Its totient is φ = 36646896000.
The previous prime is 68712935573. The next prime is 68712935633. The reversal of 68712935625 is 52653921786.
68712935625 is a `hidden beast` number, since 6 + 8 + 7 + 1 + 2 + 9 + 3 + 5 + 625 = 666.
It can be written as a sum of positive squares in 5 ways, for example, as 27233910729 + 41479024896 = 165027^2 + 203664^2 .
It is not a de Polignac number, because 68712935625 - 215 = 68712902857 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 6102192 + ... + 6113441.
Almost surely, 268712935625 is an apocalyptic number.
It is an amenable number.
68712935625 is a deficient number, since it is larger than the sum of its proper divisors (55312396377).
68712935625 is a wasteful number, since it uses less digits than its factorization.
68712935625 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12215659 (or 12215641 counting only the distinct ones).
The product of its digits is 5443200, while the sum is 54.
The spelling of 68712935625 in words is "sixty-eight billion, seven hundred twelve million, nine hundred thirty-five thousand, six hundred twenty-five".
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