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57448793 = 109752369
BaseRepresentation
bin1101101100100…
…1100101011001
311000002200221002
43123021211121
5104201330133
65411154345
71265210123
oct333114531
9130080832
1057448793
112a479146
12172a59b5
13bb9598c
1478b6213
15509bce8
hex36c9959

57448793 has 4 divisors (see below), whose sum is σ = 57502260. Its totient is φ = 57395328.

The previous prime is 57448747. The next prime is 57448813. The reversal of 57448793 is 39784475.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28858384 + 28590409 = 5372^2 + 5347^2 .

It is a cyclic number.

It is not a de Polignac number, because 57448793 - 28 = 57448537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57448493) 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, 25088 + ... + 27281.

It is an arithmetic number, because the mean of its divisors is an integer number (14375565).

Almost surely, 257448793 is an apocalyptic number.

It is an amenable number.

57448793 is a deficient number, since it is larger than the sum of its proper divisors (53467).

57448793 is a wasteful number, since it uses less digits than its factorization.

57448793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53466.

The product of its digits is 846720, while the sum is 47.

The square root of 57448793 is about 7579.4982023878. The cubic root of 57448793 is about 385.8575207726.

The spelling of 57448793 in words is "fifty-seven million, four hundred forty-eight thousand, seven hundred ninety-three".

Divisors: 1 1097 52369 57448793