Base | Representation |
---|---|
bin | 111111111100010011… |
… | …011010111100010111 |
3 | 20120012212010021210122 |
4 | 333330103122330113 |
5 | 2111102302141332 |
6 | 51312451342155 |
7 | 4650252525566 |
oct | 777423327427 |
9 | 216185107718 |
10 | 68657458967 |
11 | 27132389129 |
12 | 113812b195b |
13 | 6622266386 |
14 | 34745bdbdd |
15 | 1bbc81ac12 |
hex | ffc4daf17 |
68657458967 has 2 divisors, whose sum is σ = 68657458968. Its totient is φ = 68657458966.
The previous prime is 68657458957. The next prime is 68657458981. The reversal of 68657458967 is 76985475686.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 68657458967 - 220 = 68656410391 is a prime.
It is a super-3 number, since 3×686574589673 (a number of 33 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 68657458967.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68657458937) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34328729483 + 34328729484.
It is an arithmetic number, because the mean of its divisors is an integer number (34328729484).
Almost surely, 268657458967 is an apocalyptic number.
68657458967 is a deficient number, since it is larger than the sum of its proper divisors (1).
68657458967 is an equidigital number, since it uses as much as digits as its factorization.
68657458967 is an evil number, because the sum of its binary digits is even.
The product of its digits is 609638400, while the sum is 71.
The spelling of 68657458967 in words is "sixty-eight billion, six hundred fifty-seven million, four hundred fifty-eight thousand, nine hundred sixty-seven".
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