Base | Representation |
---|---|
bin | 1101101001011… |
… | …1010100000101 |
3 | 10222201020110212 |
4 | 3122113110011 |
5 | 104123233020 |
6 | 5402525205 |
7 | 1263361610 |
oct | 332272405 |
9 | 128636425 |
10 | 57242885 |
11 | 2a348477 |
12 | 17206805 |
13 | bb2303b |
14 | 7861177 |
15 | 505acc5 |
hex | 3697505 |
57242885 has 16 divisors (see below), whose sum is σ = 80628096. Its totient is φ = 38190528.
The previous prime is 57242849. The next prime is 57242981. The reversal of 57242885 is 58824275.
57242885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 57242885 - 26 = 57242821 is a prime.
It is a Duffinian number.
It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 20807 + ... + 23396.
It is an arithmetic number, because the mean of its divisors is an integer number (5039256).
Almost surely, 257242885 is an apocalyptic number.
It is an amenable number.
57242885 is a deficient number, since it is larger than the sum of its proper divisors (23385211).
57242885 is a wasteful number, since it uses less digits than its factorization.
57242885 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44252.
The product of its digits is 179200, while the sum is 41.
The square root of 57242885 is about 7565.9027881675. The cubic root of 57242885 is about 385.3959719819.
The spelling of 57242885 in words is "fifty-seven million, two hundred forty-two thousand, eight hundred eighty-five".
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