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57384757 = 59972623
BaseRepresentation
bin1101101011100…
…1111100110101
310222222110002101
43122321330311
5104142303012
65405542101
71264522333
oct332717465
9128873071
1057384757
112a435021
1217274931
13bb727a1
14789ab53
155087d57
hex36b9f35

57384757 has 4 divisors (see below), whose sum is σ = 58357440. Its totient is φ = 56412076.

The previous prime is 57384749. The next prime is 57384773. The reversal of 57384757 is 75748375.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57384757 - 23 = 57384749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57384737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486253 + ... + 486370.

It is an arithmetic number, because the mean of its divisors is an integer number (14589360).

Almost surely, 257384757 is an apocalyptic number.

It is an amenable number.

57384757 is a deficient number, since it is larger than the sum of its proper divisors (972683).

57384757 is an equidigital number, since it uses as much as digits as its factorization.

57384757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972682.

The product of its digits is 823200, while the sum is 46.

The square root of 57384757 is about 7575.2727343641. The cubic root of 57384757 is about 385.7141005355.

The spelling of 57384757 in words is "fifty-seven million, three hundred eighty-four thousand, seven hundred fifty-seven".

Divisors: 1 59 972623 57384757