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57080449 = 674092083
BaseRepresentation
bin1101100110111…
…1101010000001
310222101222122201
43121233222001
5104103033244
65355233201
71262114206
oct331575201
9128358581
1057080449
112a247428
1217148801
13ba9711a
14781bcad
155027ad4
hex366fa81

57080449 has 8 divisors (see below), whose sum is σ = 58101920. Its totient is φ = 56064096.

The previous prime is 57080447. The next prime is 57080461. The reversal of 57080449 is 94408075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57080449 - 21 = 57080447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57080447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26362 + ... + 28444.

It is an arithmetic number, because the mean of its divisors is an integer number (7262740).

Almost surely, 257080449 is an apocalyptic number.

It is an amenable number.

57080449 is a deficient number, since it is larger than the sum of its proper divisors (1021471).

57080449 is a wasteful number, since it uses less digits than its factorization.

57080449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 57080449 is about 7555.1604218574. The cubic root of 57080449 is about 385.0310853632.

The spelling of 57080449 in words is "fifty-seven million, eighty thousand, four hundred forty-nine".

Divisors: 1 67 409 2083 27403 139561 851947 57080449