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57793709 is a prime number
BaseRepresentation
bin1101110001110…
…1110010101101
311000202020001202
43130131302231
5104243344314
65422415245
71301144531
oct334356255
9130666052
1057793709
112a6942a6
1217431525
13bc8697c
147965bc1
1551190de
hex371dcad

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".