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57313073 = 67855419
BaseRepresentation
bin1101101010100…
…0011100110001
310222211210202102
43122220130301
5104133004243
65404230145
71264103336
oct332503461
9128753672
1057313073
112a396184
121723b355
13bb48c7c
14787c98d
1550719b8
hex36a8731

57313073 has 4 divisors (see below), whose sum is σ = 58168560. Its totient is φ = 56457588.

The previous prime is 57313043. The next prime is 57313093. The reversal of 57313073 is 37031375.

57313073 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, 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 57313073 - 28 = 57312817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57313043) 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, 427643 + ... + 427776.

It is an arithmetic number, because the mean of its divisors is an integer number (14542140).

Almost surely, 257313073 is an apocalyptic number.

It is an amenable number.

57313073 is a deficient number, since it is larger than the sum of its proper divisors (855487).

57313073 is an equidigital number, since it uses as much as digits as its factorization.

57313073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855486.

The product of its (nonzero) digits is 6615, while the sum is 29.

The square root of 57313073 is about 7570.5398090229. The cubic root of 57313073 is about 385.5534245877.

The spelling of 57313073 in words is "fifty-seven million, three hundred thirteen thousand, seventy-three".

Divisors: 1 67 855419 57313073