Base | Representation |
---|---|
bin | 1101110001110… |
… | …1110010101101 |
3 | 11000202020001202 |
4 | 3130131302231 |
5 | 104243344314 |
6 | 5422415245 |
7 | 1301144531 |
oct | 334356255 |
9 | 130666052 |
10 | 57793709 |
11 | 2a6942a6 |
12 | 17431525 |
13 | bc8697c |
14 | 7965bc1 |
15 | 51190de |
hex | 371dcad |
57793709 has 2 divisors, whose sum is σ = 57793710. Its totient is φ = 57793708.
The previous prime is 57793679. The next prime is 57793711. The reversal of 57793709 is 90739775.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 53611684 + 4182025 = 7322^2 + 2045^2 .
It is a cyclic number.
It is not a de Polignac number, because 57793709 - 28 = 57793453 is a prime.
It is a super-2 number, since 2×577937092 = 6680225599953362, which contains 22 as substring.
Together with 57793711, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (57793789) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28896854 + 28896855.
It is an arithmetic number, because the mean of its divisors is an integer number (28896855).
Almost surely, 257793709 is an apocalyptic number.
It is an amenable number.
57793709 is a deficient number, since it is larger than the sum of its proper divisors (1).
57793709 is an equidigital number, since it uses as much as digits as its factorization.
57793709 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 416745, while the sum is 47.
The square root of 57793709 is about 7602.2173738982. The cubic root of 57793709 is about 386.6281953236.
The spelling of 57793709 in words is "fifty-seven million, seven hundred ninety-three thousand, seven hundred nine".
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