Base | Representation |
---|---|
bin | 1101101010001… |
… | …0100000111101 |
3 | 10222210120102010 |
4 | 3122202200331 |
5 | 104131220030 |
6 | 5403521433 |
7 | 1263642432 |
oct | 332424075 |
9 | 128716363 |
10 | 57288765 |
11 | 2a379996 |
12 | 17229279 |
13 | bb3aba1 |
14 | 7873b89 |
15 | 50696b0 |
hex | 36a283d |
57288765 has 32 divisors (see below), whose sum is σ = 95103360. Its totient is φ = 29424384.
The previous prime is 57288739. The next prime is 57288773. The reversal of 57288765 is 56788275.
57288765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 57288765 - 25 = 57288733 is a prime.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60022 + ... + 60968.
It is an arithmetic number, because the mean of its divisors is an integer number (2971980).
Almost surely, 257288765 is an apocalyptic number.
It is an amenable number.
57288765 is a deficient number, since it is larger than the sum of its proper divisors (37814595).
57288765 is a wasteful number, since it uses less digits than its factorization.
57288765 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1101.
The product of its digits is 940800, while the sum is 48.
The square root of 57288765 is about 7568.9342050252. The cubic root of 57288765 is about 385.4989090560.
The spelling of 57288765 in words is "fifty-seven million, two hundred eighty-eight thousand, seven hundred sixty-five".
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