Base | Representation |
---|---|
bin | 111111111100010110… |
… | …100100110010011111 |
3 | 20120012220200021220101 |
4 | 333330112210302133 |
5 | 2111103010120402 |
6 | 51312521201531 |
7 | 4650262541143 |
oct | 777426446237 |
9 | 216186607811 |
10 | 68658285727 |
11 | 271328a32a9 |
12 | 113816302a7 |
13 | 6622495795 |
14 | 3474757223 |
15 | 1bbc930b87 |
hex | ffc5a4c9f |
68658285727 has 2 divisors, whose sum is σ = 68658285728. Its totient is φ = 68658285726.
The previous prime is 68658285673. The next prime is 68658285767. The reversal of 68658285727 is 72758285686.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68658285727 - 27 = 68658285599 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68658285767) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34329142863 + 34329142864.
It is an arithmetic number, because the mean of its divisors is an integer number (34329142864).
Almost surely, 268658285727 is an apocalyptic number.
68658285727 is a deficient number, since it is larger than the sum of its proper divisors (1).
68658285727 is an equidigital number, since it uses as much as digits as its factorization.
68658285727 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 90316800, while the sum is 64.
The spelling of 68658285727 in words is "sixty-eight billion, six hundred fifty-eight million, two hundred eighty-five thousand, seven hundred twenty-seven".
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