Base | Representation |
---|---|
bin | 1101100101110… |
… | …1010011010111 |
3 | 10222021011112100 |
4 | 3121131103113 |
5 | 104043132041 |
6 | 5353453143 |
7 | 1261352061 |
oct | 331352327 |
9 | 128234470 |
10 | 57005271 |
11 | 2a1a59a4 |
12 | 171111b3 |
13 | ba6bb3b |
14 | 77dc731 |
15 | 50106b6 |
hex | 365d4d7 |
57005271 has 24 divisors (see below), whose sum is σ = 87497280. Its totient is φ = 35695296.
The previous prime is 57005257. The next prime is 57005279. The reversal of 57005271 is 17250075.
It is not a de Polignac number, because 57005271 - 25 = 57005239 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57005279) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6706 + ... + 12608.
It is an arithmetic number, because the mean of its divisors is an integer number (3645720).
Almost surely, 257005271 is an apocalyptic number.
57005271 is a deficient number, since it is larger than the sum of its proper divisors (30492009).
57005271 is a wasteful number, since it uses less digits than its factorization.
57005271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5975 (or 5972 counting only the distinct ones).
The product of its (nonzero) digits is 2450, while the sum is 27.
The square root of 57005271 is about 7550.1835077036. The cubic root of 57005271 is about 384.8619755980.
The spelling of 57005271 in words is "fifty-seven million, five thousand, two hundred seventy-one".
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