Base | Representation |
---|---|
bin | 1000001001001… |
… | …01011101001100 |
3 | 11202112112212212 |
4 | 10010211131030 |
5 | 114441421420 |
6 | 10440045552 |
7 | 1456430012 |
oct | 404453514 |
9 | 152475785 |
10 | 68310860 |
11 | 35617a62 |
12 | 1aa638b8 |
13 | 111c9a37 |
14 | 91028b2 |
15 | 5ee53c5 |
hex | 412574c |
68310860 has 24 divisors (see below), whose sum is σ = 143791200. Its totient is φ = 27259904.
The previous prime is 68310859. The next prime is 68310919. The reversal of 68310860 is 6801386.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5177 + ... + 12783.
It is an arithmetic number, because the mean of its divisors is an integer number (5991300).
Almost surely, 268310860 is an apocalyptic number.
It is an amenable number.
68310860 is an abundant number, since it is smaller than the sum of its proper divisors (75480340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68310860 is a wasteful number, since it uses less digits than its factorization.
68310860 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8065 (or 8063 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 32.
The square root of 68310860 is about 8265.0384149138. The cubic root of 68310860 is about 408.7865370239.
The spelling of 68310860 in words is "sixty-eight million, three hundred ten thousand, eight hundred sixty".
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