Base | Representation |
---|---|
bin | 111111011000000000… |
… | …100000110000110011 |
3 | 20111122102022002201102 |
4 | 333120000200300303 |
5 | 2103330410203131 |
6 | 51132215555015 |
7 | 4626206616161 |
oct | 773000406063 |
9 | 214572262642 |
10 | 68048522291 |
11 | 2694a686a82 |
12 | 1123138ba6b |
13 | 655605bc09 |
14 | 341778c231 |
15 | 1b841351cb |
hex | fd8020c33 |
68048522291 has 2 divisors, whose sum is σ = 68048522292. Its totient is φ = 68048522290.
The previous prime is 68048522273. The next prime is 68048522293. The reversal of 68048522291 is 19222584086.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68048522291 - 222 = 68044327987 is a prime.
Together with 68048522293, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (68048522293) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34024261145 + 34024261146.
It is an arithmetic number, because the mean of its divisors is an integer number (34024261146).
Almost surely, 268048522291 is an apocalyptic number.
68048522291 is a deficient number, since it is larger than the sum of its proper divisors (1).
68048522291 is an equidigital number, since it uses as much as digits as its factorization.
68048522291 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 552960, while the sum is 47.
The spelling of 68048522291 in words is "sixty-eight billion, forty-eight million, five hundred twenty-two thousand, two hundred ninety-one".
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