Base | Representation |
---|---|
bin | 10100111111110111111 |
3 | 1021221211211 |
4 | 2213332333 |
5 | 134004223 |
6 | 22425251 |
7 | 5564005 |
oct | 2477677 |
9 | 1257754 |
10 | 688063 |
11 | 42aa52 |
12 | 292227 |
13 | 1b124c |
14 | 13ca75 |
15 | d8d0d |
hex | a7fbf |
688063 has 2 divisors, whose sum is σ = 688064. Its totient is φ = 688062.
The previous prime is 688031. The next prime is 688067. The reversal of 688063 is 360886.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 688063 - 25 = 688031 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (688067) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344031 + 344032.
It is an arithmetic number, because the mean of its divisors is an integer number (344032).
2688063 is an apocalyptic number.
688063 is a deficient number, since it is larger than the sum of its proper divisors (1).
688063 is an equidigital number, since it uses as much as digits as its factorization.
688063 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6912, while the sum is 31.
The square root of 688063 is about 829.4956298860. The cubic root of 688063 is about 88.2827937627.
The spelling of 688063 in words is "six hundred eighty-eight thousand, sixty-three".
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