Base | Representation |
---|---|
bin | 1000001100110… |
… | …11110111011110 |
3 | 11210110012012012 |
4 | 10012123313132 |
5 | 120102431440 |
6 | 10454311222 |
7 | 1463520023 |
oct | 406336736 |
9 | 153405165 |
10 | 68795870 |
11 | 359193a0 |
12 | 1b058512 |
13 | 11339720 |
14 | 91cb54a |
15 | 608de65 |
hex | 419bdde |
68795870 has 32 divisors (see below), whose sum is σ = 145484640. Its totient is φ = 23091840.
The previous prime is 68795849. The next prime is 68795879. The reversal of 68795870 is 7859786.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68795879) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22625 + ... + 25484.
It is an arithmetic number, because the mean of its divisors is an integer number (4546395).
Almost surely, 268795870 is an apocalyptic number.
68795870 is an abundant number, since it is smaller than the sum of its proper divisors (76688770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68795870 is a wasteful number, since it uses less digits than its factorization.
68795870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48140.
The product of its (nonzero) digits is 846720, while the sum is 50.
The square root of 68795870 is about 8294.3275797379. The cubic root of 68795870 is about 409.7517235706.
The spelling of 68795870 in words is "sixty-eight million, seven hundred ninety-five thousand, eight hundred seventy".
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