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57825293 = 411410373
BaseRepresentation
bin1101110010010…
…1100000001101
311000210211101112
43130211200031
5104300402133
65423221405
71301335601
oct334454015
9130724345
1057825293
112a705aa9
1217447865
13bc98166
147973501
155123648
hex372580d

57825293 has 4 divisors (see below), whose sum is σ = 59235708. Its totient is φ = 56414880.

The previous prime is 57825281. The next prime is 57825301. The reversal of 57825293 is 39252875.

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 8305924 + 49519369 = 2882^2 + 7037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57825293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1410373 = 57825293 / (5 + 7 + 8 + 2 + 5 + 2 + 9 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57825293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57825223) 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, 705146 + ... + 705227.

It is an arithmetic number, because the mean of its divisors is an integer number (14808927).

Almost surely, 257825293 is an apocalyptic number.

It is an amenable number.

57825293 is a deficient number, since it is larger than the sum of its proper divisors (1410415).

57825293 is a wasteful number, since it uses less digits than its factorization.

57825293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410414.

The product of its digits is 151200, while the sum is 41.

The square root of 57825293 is about 7604.2943788362. The cubic root of 57825293 is about 386.6986126829.

The spelling of 57825293 in words is "fifty-seven million, eight hundred twenty-five thousand, two hundred ninety-three".

Divisors: 1 41 1410373 57825293