Base | Representation |
---|---|
bin | 111111010110001100… |
… | …101101010111010000 |
3 | 20111120022011210121201 |
4 | 333112030231113100 |
5 | 2103300122241300 |
6 | 51125213200544 |
7 | 4625360602426 |
oct | 772614552720 |
9 | 214508153551 |
10 | 68018165200 |
11 | 26934532277 |
12 | 11223190154 |
13 | 654c99053b |
14 | 3413729116 |
15 | 1b8163a66a |
hex | fd632d5d0 |
68018165200 has 60 divisors (see below), whose sum is σ = 163859264320. Its totient is φ = 27133073280.
The previous prime is 68018165161. The next prime is 68018165221. The reversal of 68018165200 is 256181086.
It is a self number, because there is not a number n which added to its sum of digits gives 68018165200.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84870 + ... + 378469.
Almost surely, 268018165200 is an apocalyptic number.
It is an amenable number.
68018165200 is an abundant number, since it is smaller than the sum of its proper divisors (95841099120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68018165200 is a wasteful number, since it uses less digits than its factorization.
68018165200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 463724 (or 463713 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 37.
The spelling of 68018165200 in words is "sixty-eight billion, eighteen million, one hundred sixty-five thousand, two hundred".
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