Base | Representation |
---|---|
bin | 1101101011101… |
… | …0100000000000 |
3 | 10222222120011202 |
4 | 3122322200000 |
5 | 104142341013 |
6 | 5410000332 |
7 | 1264532030 |
oct | 332724000 |
9 | 128876152 |
10 | 57387008 |
11 | 2a436788 |
12 | 172760a8 |
13 | bb73813 |
14 | 789b8c0 |
15 | 5088858 |
hex | 36ba800 |
57387008 has 48 divisors (see below), whose sum is σ = 131171040. Its totient is φ = 24588288.
The previous prime is 57386993. The next prime is 57387013. The reversal of 57387008 is 80078375.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12335 + ... + 16337.
It is an arithmetic number, because the mean of its divisors is an integer number (2732730).
Almost surely, 257387008 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 57387008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65585520).
57387008 is an abundant number, since it is smaller than the sum of its proper divisors (73784032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57387008 is an equidigital number, since it uses as much as digits as its factorization.
57387008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4032 (or 4012 counting only the distinct ones).
The product of its (nonzero) digits is 47040, while the sum is 38.
The square root of 57387008 is about 7575.4213084158. The cubic root of 57387008 is about 385.7191438672.
The spelling of 57387008 in words is "fifty-seven million, three hundred eighty-seven thousand, eight".
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