Base | Representation |
---|---|
bin | 111011111111111110… |
… | …001110111011001111 |
3 | 20011021211012122100102 |
4 | 323333332032323033 |
5 | 2023420023440122 |
6 | 45332422521315 |
7 | 4440326233556 |
oct | 737776167317 |
9 | 204254178312 |
10 | 64424046287 |
11 | 2535a770567 |
12 | 1059b59623b |
13 | 60c918c263 |
14 | 319226ad9d |
15 | 1a20d3b492 |
hex | efff8eecf |
64424046287 has 2 divisors, whose sum is σ = 64424046288. Its totient is φ = 64424046286.
The previous prime is 64424046223. The next prime is 64424046299. The reversal of 64424046287 is 78264042446.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 64424046287 - 26 = 64424046223 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (64424096287) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32212023143 + 32212023144.
It is an arithmetic number, because the mean of its divisors is an integer number (32212023144).
Almost surely, 264424046287 is an apocalyptic number.
64424046287 is a deficient number, since it is larger than the sum of its proper divisors (1).
64424046287 is an equidigital number, since it uses as much as digits as its factorization.
64424046287 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2064384, while the sum is 47.
The spelling of 64424046287 in words is "sixty-four billion, four hundred twenty-four million, forty-six thousand, two hundred eighty-seven".
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