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57452313 = 319150771
BaseRepresentation
bin1101101100101…
…0011100011001
311000002212202110
43123022130121
5104201433223
65411222533
71265223312
oct333123431
9130085673
1057452313
112a480856
12172a7a49
13bb97469
1478b7609
15509cd93
hex36ca719

57452313 has 4 divisors (see below), whose sum is σ = 76603088. Its totient is φ = 38301540.

The previous prime is 57452303. The next prime is 57452323. The reversal of 57452313 is 31325475.

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 an interprime number because it is at equal distance from previous prime (57452303) and next prime (57452323).

It is not a de Polignac number, because 57452313 - 26 = 57452249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57452303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9575383 + ... + 9575388.

It is an arithmetic number, because the mean of its divisors is an integer number (19150772).

Almost surely, 257452313 is an apocalyptic number.

It is an amenable number.

57452313 is a deficient number, since it is larger than the sum of its proper divisors (19150775).

57452313 is a wasteful number, since it uses less digits than its factorization.

57452313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19150774.

The product of its digits is 12600, while the sum is 30.

The square root of 57452313 is about 7579.7304041767. The cubic root of 57452313 is about 385.8654013602.

Adding to 57452313 its reverse (31325475), we get a palindrome (88777788).

The spelling of 57452313 in words is "fifty-seven million, four hundred fifty-two thousand, three hundred thirteen".

Divisors: 1 3 19150771 57452313