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57306241 = 73785017
BaseRepresentation
bin1101101010011…
…0110010000001
310222211110101101
43122212302001
5104132244431
65404134401
71264044406
oct332466201
9128743341
1057306241
112a391033
1217237401
13bb45b25
14787a2ad
15506e961
hex36a6c81

57306241 has 4 divisors (see below), whose sum is σ = 58091332. Its totient is φ = 56521152.

The previous prime is 57306209. The next prime is 57306247. The reversal of 57306241 is 14260375.

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 9985600 + 47320641 = 3160^2 + 6879^2 .

It is a cyclic number.

It is not a de Polignac number, because 57306241 - 25 = 57306209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57306247) 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, 392436 + ... + 392581.

It is an arithmetic number, because the mean of its divisors is an integer number (14522833).

Almost surely, 257306241 is an apocalyptic number.

It is an amenable number.

57306241 is a deficient number, since it is larger than the sum of its proper divisors (785091).

57306241 is an equidigital number, since it uses as much as digits as its factorization.

57306241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785090.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 57306241 is about 7570.0885727975. The cubic root of 57306241 is about 385.5381040245.

The spelling of 57306241 in words is "fifty-seven million, three hundred six thousand, two hundred forty-one".

Divisors: 1 73 785017 57306241