Base | Representation |
---|---|
bin | 100001111010000… |
… | …110111000101001 |
3 | 1110122110010120212 |
4 | 201322012320221 |
5 | 2131113140211 |
6 | 132241030505 |
7 | 20045256155 |
oct | 4172067051 |
9 | 1418403525 |
10 | 568880681 |
11 | 272133526 |
12 | 13a625435 |
13 | 90b212b5 |
14 | 557a6065 |
15 | 34e2238b |
hex | 21e86e29 |
568880681 has 2 divisors, whose sum is σ = 568880682. Its totient is φ = 568880680.
The previous prime is 568880677. The next prime is 568880789. The reversal of 568880681 is 186088865.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 426794281 + 142086400 = 20659^2 + 11920^2 .
It is a cyclic number.
It is not a de Polignac number, because 568880681 - 22 = 568880677 is a prime.
It is a super-2 number, since 2×5688806812 = 647250458430047522, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (568880651) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284440340 + 284440341.
It is an arithmetic number, because the mean of its divisors is an integer number (284440341).
Almost surely, 2568880681 is an apocalyptic number.
It is an amenable number.
568880681 is a deficient number, since it is larger than the sum of its proper divisors (1).
568880681 is an equidigital number, since it uses as much as digits as its factorization.
568880681 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 737280, while the sum is 50.
The square root of 568880681 is about 23851.2196962755. The cubic root of 568880681 is about 828.5913499301.
The spelling of 568880681 in words is "five hundred sixty-eight million, eight hundred eighty thousand, six hundred eighty-one".
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