Base | Representation |
---|---|
bin | 111011111101010110… |
… | …100101000010000011 |
3 | 20011011202111202202211 |
4 | 323331112211002003 |
5 | 2023322301043033 |
6 | 45324212522551 |
7 | 4436253535522 |
oct | 737526450203 |
9 | 204152452684 |
10 | 64380096643 |
11 | 25337982545 |
12 | 10588920457 |
13 | 60c0041a55 |
14 | 318a4aa4b9 |
15 | 1a1c0592cd |
hex | efd5a5083 |
64380096643 has 2 divisors, whose sum is σ = 64380096644. Its totient is φ = 64380096642.
The previous prime is 64380096631. The next prime is 64380096647. The reversal of 64380096643 is 34669008346.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 64380096643 - 25 = 64380096611 is a prime.
It is not a weakly prime, because it can be changed into another prime (64380096647) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32190048321 + 32190048322.
It is an arithmetic number, because the mean of its divisors is an integer number (32190048322).
Almost surely, 264380096643 is an apocalyptic number.
64380096643 is a deficient number, since it is larger than the sum of its proper divisors (1).
64380096643 is an equidigital number, since it uses as much as digits as its factorization.
64380096643 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2239488, while the sum is 49.
The spelling of 64380096643 in words is "sixty-four billion, three hundred eighty million, ninety-six thousand, six hundred forty-three".
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