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57299289 = 319099763
BaseRepresentation
bin1101101010010…
…1000101011001
310222211002211220
43122211011121
5104132034124
65404042253
71264015215
oct332450531
9128732756
1057299289
112a386893
1217233389
13bb42908
147877945
15506c879
hex36a5159

57299289 has 4 divisors (see below), whose sum is σ = 76399056. Its totient is φ = 38199524.

The previous prime is 57299287. The next prime is 57299303. The reversal of 57299289 is 98299275.

57299289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57299289 - 21 = 57299287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57299287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9549879 + ... + 9549884.

It is an arithmetic number, because the mean of its divisors is an integer number (19099764).

Almost surely, 257299289 is an apocalyptic number.

It is an amenable number.

57299289 is a deficient number, since it is larger than the sum of its proper divisors (19099767).

57299289 is a wasteful number, since it uses less digits than its factorization.

57299289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19099766.

The product of its digits is 816480, while the sum is 51.

The square root of 57299289 is about 7569.6293832657. The cubic root of 57299289 is about 385.5225131147.

The spelling of 57299289 in words is "fifty-seven million, two hundred ninety-nine thousand, two hundred eighty-nine".

Divisors: 1 3 19099763 57299289