Base | Representation |
---|---|
bin | 1101100111101… |
… | …1111000110100 |
3 | 10222111112101020 |
4 | 3121323320310 |
5 | 104111134143 |
6 | 5400301140 |
7 | 1262413236 |
oct | 331737064 |
9 | 128445336 |
10 | 57130548 |
11 | 2a281032 |
12 | 171717b0 |
13 | bab3b77 |
14 | 7832256 |
15 | 5037883 |
hex | 367be34 |
57130548 has 48 divisors (see below), whose sum is σ = 137639040. Its totient is φ = 18432000.
The previous prime is 57130547. The next prime is 57130559. The reversal of 57130548 is 84503175.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57130543) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73908 + ... + 74676.
It is an arithmetic number, because the mean of its divisors is an integer number (2867480).
Almost surely, 257130548 is an apocalyptic number.
It is an amenable number.
57130548 is an abundant number, since it is smaller than the sum of its proper divisors (80508492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57130548 is a wasteful number, since it uses less digits than its factorization.
57130548 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 968 (or 966 counting only the distinct ones).
The product of its (nonzero) digits is 16800, while the sum is 33.
The square root of 57130548 is about 7558.4752430632. The cubic root of 57130548 is about 385.1436985374.
The spelling of 57130548 in words is "fifty-seven million, one hundred thirty thousand, five hundred forty-eight".
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