Base | Representation |
---|---|
bin | 111111100110010011… |
… | …010100101010001111 |
3 | 20112021010112211012022 |
4 | 333212103110222033 |
5 | 2104323303200404 |
6 | 51212104000355 |
7 | 4635151160111 |
oct | 774623245217 |
9 | 215233484168 |
10 | 68288334479 |
11 | 26a62a91472 |
12 | 112997600bb |
13 | 6593945411 |
14 | 343b5753b1 |
15 | 1b9a2058be |
hex | fe64d4a8f |
68288334479 has 2 divisors, whose sum is σ = 68288334480. Its totient is φ = 68288334478.
The previous prime is 68288334449. The next prime is 68288334481. The reversal of 68288334479 is 97443388286.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68288334479 - 220 = 68287285903 is a prime.
Together with 68288334481, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68288334419) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34144167239 + 34144167240.
It is an arithmetic number, because the mean of its divisors is an integer number (34144167240).
Almost surely, 268288334479 is an apocalyptic number.
68288334479 is a deficient number, since it is larger than the sum of its proper divisors (1).
68288334479 is an equidigital number, since it uses as much as digits as its factorization.
68288334479 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 55738368, while the sum is 62.
The spelling of 68288334479 in words is "sixty-eight billion, two hundred eighty-eight million, three hundred thirty-four thousand, four hundred seventy-nine".
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