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57108481 is a prime number
BaseRepresentation
bin1101100111011…
…0100000000001
310222110102002221
43121312200001
5104104432411
65400011041
71262262013
oct331664001
9128412087
1057108481
112a2664a1
1217160a81
13baa6b01
1478281b3
155031071
hex3676801

57108481 has 2 divisors, whose sum is σ = 57108482. Its totient is φ = 57108480.

The previous prime is 57108463. The next prime is 57108521. The reversal of 57108481 is 18480175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45684081 + 11424400 = 6759^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 57108481 - 29 = 57107969 is a prime.

It is a super-2 number, since 2×571084812 = 6522757204254722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57108451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28554240 + 28554241.

It is an arithmetic number, because the mean of its divisors is an integer number (28554241).

Almost surely, 257108481 is an apocalyptic number.

It is an amenable number.

57108481 is a deficient number, since it is larger than the sum of its proper divisors (1).

57108481 is an equidigital number, since it uses as much as digits as its factorization.

57108481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 57108481 is about 7557.0153499910. The cubic root of 57108481 is about 385.0941041681.

The spelling of 57108481 in words is "fifty-seven million, one hundred eight thousand, four hundred eighty-one".