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57434561 = 313183497
BaseRepresentation
bin1101101100011…
…0000111000001
311000001222101222
43123012013001
5104200401221
65411004425
71265120462
oct333060701
9130058358
1057434561
112a469488
1217299715
13bb8c362
1478b0d69
1550979ab
hex36c61c1

57434561 has 4 divisors (see below), whose sum is σ = 57618372. Its totient is φ = 57250752.

The previous prime is 57434557. The next prime is 57434569. The reversal of 57434561 is 16543475.

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 22848400 + 34586161 = 4780^2 + 5881^2 .

It is a cyclic number.

It is not a de Polignac number, because 57434561 - 22 = 57434557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57434569) 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, 91436 + ... + 92061.

It is an arithmetic number, because the mean of its divisors is an integer number (14404593).

Almost surely, 257434561 is an apocalyptic number.

It is an amenable number.

57434561 is a deficient number, since it is larger than the sum of its proper divisors (183811).

57434561 is a wasteful number, since it uses less digits than its factorization.

57434561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183810.

The product of its digits is 50400, while the sum is 35.

The square root of 57434561 is about 7578.5592958029. The cubic root of 57434561 is about 385.8256548419.

The spelling of 57434561 in words is "fifty-seven million, four hundred thirty-four thousand, five hundred sixty-one".

Divisors: 1 313 183497 57434561