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57291107 = 71806917
BaseRepresentation
bin1101101010001…
…1000101100011
310222210200121212
43122203011203
5104131303412
65403540335
71263652316
oct332430543
9128720555
1057291107
112a380725
121722a6ab
13bb3bc83
14787497d
15506a222
hex36a3163

57291107 has 4 divisors (see below), whose sum is σ = 58098096. Its totient is φ = 56484120.

The previous prime is 57291103. The next prime is 57291109. The reversal of 57291107 is 70119275.

57291107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57291107 - 22 = 57291103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57291103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403388 + ... + 403529.

It is an arithmetic number, because the mean of its divisors is an integer number (14524524).

Almost surely, 257291107 is an apocalyptic number.

57291107 is a deficient number, since it is larger than the sum of its proper divisors (806989).

57291107 is an equidigital number, since it uses as much as digits as its factorization.

57291107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806988.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 57291107 is about 7569.0889147902. The cubic root of 57291107 is about 385.5041621287.

The spelling of 57291107 in words is "fifty-seven million, two hundred ninety-one thousand, one hundred seven".

Divisors: 1 71 806917 57291107