Base | Representation |
---|---|
bin | 1111010001011… |
… | …1000111001001 |
3 | 11110112110210011 |
4 | 3310113013021 |
5 | 112344322201 |
6 | 10204551521 |
7 | 1405324303 |
oct | 364270711 |
9 | 143473704 |
10 | 64057801 |
11 | 33182635 |
12 | 195525a1 |
13 | 1036ac32 |
14 | 8716973 |
15 | 5955151 |
hex | 3d171c9 |
64057801 has 4 divisors (see below), whose sum is σ = 64125972. Its totient is φ = 63989632.
The previous prime is 64057793. The next prime is 64057813. The reversal of 64057801 is 10875046.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 44023225 + 20034576 = 6635^2 + 4476^2 .
It is a cyclic number.
It is not a de Polignac number, because 64057801 - 23 = 64057793 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (64057601) 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, 32656 + ... + 34561.
It is an arithmetic number, because the mean of its divisors is an integer number (16031493).
Almost surely, 264057801 is an apocalyptic number.
It is an amenable number.
64057801 is a deficient number, since it is larger than the sum of its proper divisors (68171).
64057801 is an equidigital number, since it uses as much as digits as its factorization.
64057801 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68170.
The product of its (nonzero) digits is 6720, while the sum is 31.
The square root of 64057801 is about 8003.6117472051. The cubic root of 64057801 is about 400.1203825165.
The spelling of 64057801 in words is "sixty-four million, fifty-seven thousand, eight hundred one".
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