Base | Representation |
---|---|
bin | 1101101100101… |
… | …1110000011000 |
3 | 11000010011010112 |
4 | 3123023300120 |
5 | 104202121223 |
6 | 5411303452 |
7 | 1265245061 |
oct | 333136030 |
9 | 130104115 |
10 | 57457688 |
11 | 2a4848a2 |
12 | 172aab88 |
13 | bb99a42 |
14 | 78b9568 |
15 | 509e778 |
hex | 36cbc18 |
57457688 has 64 divisors (see below), whose sum is σ = 118972800. Its totient is φ = 25907200.
The previous prime is 57457679. The next prime is 57457709. The reversal of 57457688 is 88675475.
57457688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
Its product of digits (1881600) is a multiple of the sum of its prime divisors (256).
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, 568838 + ... + 568938.
It is an arithmetic number, because the mean of its divisors is an integer number (1858950).
Almost surely, 257457688 is an apocalyptic number.
It is an amenable number.
57457688 is an abundant number, since it is smaller than the sum of its proper divisors (61515112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57457688 is a wasteful number, since it uses less digits than its factorization.
57457688 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 260 (or 256 counting only the distinct ones).
The product of its digits is 1881600, while the sum is 50.
The square root of 57457688 is about 7580.0849599460. The cubic root of 57457688 is about 385.8774343069.
The spelling of 57457688 in words is "fifty-seven million, four hundred fifty-seven thousand, six hundred eighty-eight".
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