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57494793 = 319164931
BaseRepresentation
bin1101101101010…
…0110100001001
311000012001000210
43123110310021
5104204313133
65412151333
71265461206
oct333246411
9130161023
1057494793
112a4aa764
1217308549
13bbb08b5
1478c8cad
1550aa763
hex36d4d09

57494793 has 4 divisors (see below), whose sum is σ = 76659728. Its totient is φ = 38329860.

The previous prime is 57494747. The next prime is 57494803. The reversal of 57494793 is 39749475.

It is a happy number.

57494793 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 not a de Polignac number, because 57494793 - 26 = 57494729 is a prime.

It is a super-2 number, since 2×574947932 = 6611302444225698, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57494743) 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, 9582463 + ... + 9582468.

It is an arithmetic number, because the mean of its divisors is an integer number (19164932).

Almost surely, 257494793 is an apocalyptic number.

It is an amenable number.

57494793 is a deficient number, since it is larger than the sum of its proper divisors (19164935).

57494793 is a wasteful number, since it uses less digits than its factorization.

57494793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19164934.

The product of its digits is 952560, while the sum is 48.

The square root of 57494793 is about 7582.5320968658. The cubic root of 57494793 is about 385.9604803518.

The spelling of 57494793 in words is "fifty-seven million, four hundred ninety-four thousand, seven hundred ninety-three".

Divisors: 1 3 19164931 57494793