Base | Representation |
---|---|
bin | 111011111100001101… |
… | …111011100011001001 |
3 | 20011010102200012221001 |
4 | 323330031323203021 |
5 | 2023302412133421 |
6 | 45322252415001 |
7 | 4435632630034 |
oct | 737415734311 |
9 | 204112605831 |
10 | 64361052361 |
11 | 25328155271 |
12 | 10582477461 |
13 | 60b9104648 |
14 | 3187b5001b |
15 | 1a1a546691 |
hex | efc37b8c9 |
64361052361 has 4 divisors (see below), whose sum is σ = 64366051792. Its totient is φ = 64356052932.
The previous prime is 64361052347. The next prime is 64361052391. The reversal of 64361052361 is 16325016346.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 64361052361 - 213 = 64361044169 is a prime.
It is a super-2 number, since 2×643610523612 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 64361052361.
It is not an unprimeable number, because it can be changed into a prime (64361052391) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2480355 + ... + 2506168.
It is an arithmetic number, because the mean of its divisors is an integer number (16091512948).
Almost surely, 264361052361 is an apocalyptic number.
It is an amenable number.
64361052361 is a deficient number, since it is larger than the sum of its proper divisors (4999431).
64361052361 is a wasteful number, since it uses less digits than its factorization.
64361052361 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4999430.
The product of its (nonzero) digits is 77760, while the sum is 37.
The spelling of 64361052361 in words is "sixty-four billion, three hundred sixty-one million, fifty-two thousand, three hundred sixty-one".
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