Base | Representation |
---|---|
bin | 111011111101010110… |
… | …100101000000111001 |
3 | 20011011202111202200002 |
4 | 323331112211000321 |
5 | 2023322301042234 |
6 | 45324212522345 |
7 | 4436253535355 |
oct | 737526450071 |
9 | 204152452602 |
10 | 64380096569 |
11 | 25337982488 |
12 | 105889203b5 |
13 | 60c00419c9 |
14 | 318a4aa465 |
15 | 1a1c05927e |
hex | efd5a5039 |
64380096569 has 2 divisors, whose sum is σ = 64380096570. Its totient is φ = 64380096568.
The previous prime is 64380096553. The next prime is 64380096611. The reversal of 64380096569 is 96569008346.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 50717292025 + 13662804544 = 225205^2 + 116888^2 .
It is a cyclic number.
It is not a de Polignac number, because 64380096569 - 24 = 64380096553 is a prime.
It is a super-2 number, since 2×643800965692 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (64380095569) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32190048284 + 32190048285.
It is an arithmetic number, because the mean of its divisors is an integer number (32190048285).
Almost surely, 264380096569 is an apocalyptic number.
It is an amenable number.
64380096569 is a deficient number, since it is larger than the sum of its proper divisors (1).
64380096569 is an equidigital number, since it uses as much as digits as its factorization.
64380096569 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8398080, while the sum is 56.
The spelling of 64380096569 in words is "sixty-four billion, three hundred eighty million, ninety-six thousand, five hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.086 sec. • engine limits •