Base | Representation |
---|---|
bin | 1101101100010… |
… | …1000010111101 |
3 | 11000001202102122 |
4 | 3123011002331 |
5 | 104200231310 |
6 | 5410532325 |
7 | 1265102000 |
oct | 333050275 |
9 | 130052378 |
10 | 57430205 |
11 | 2a466188 |
12 | 172970a5 |
13 | bb8a391 |
14 | 78ad537 |
15 | 5096555 |
hex | 36c50bd |
57430205 has 16 divisors (see below), whose sum is σ = 80371200. Its totient is φ = 39379536.
The previous prime is 57430159. The next prime is 57430207. The reversal of 57430205 is 50203475.
It is a de Polignac number, because none of the positive numbers 2k-57430205 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57430207) 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, 15029 + ... + 18458.
It is an arithmetic number, because the mean of its divisors is an integer number (5023200).
Almost surely, 257430205 is an apocalyptic number.
It is an amenable number.
57430205 is a deficient number, since it is larger than the sum of its proper divisors (22940995).
57430205 is an equidigital number, since it uses as much as digits as its factorization.
57430205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33513 (or 33499 counting only the distinct ones).
The product of its (nonzero) digits is 4200, while the sum is 26.
The square root of 57430205 is about 7578.2719006380. The cubic root of 57430205 is about 385.8159005580.
The spelling of 57430205 in words is "fifty-seven million, four hundred thirty thousand, two hundred five".
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