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57042259 = 176167821
BaseRepresentation
bin1101100110011…
…0010101010011
310222100001021021
43121212111103
5104100323014
65354340311
71261564651
oct331462523
9128301237
1057042259
112a22076a
121712a697
13ba82921
14780bdd1
15501b624
hex3666553

57042259 has 16 divisors (see below), whose sum is σ = 62379936. Its totient is φ = 51955200.

The previous prime is 57042253. The next prime is 57042269. The reversal of 57042259 is 95224075.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57042259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57042253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69069 + ... + 69889.

It is an arithmetic number, because the mean of its divisors is an integer number (3898746).

Almost surely, 257042259 is an apocalyptic number.

57042259 is a deficient number, since it is larger than the sum of its proper divisors (5337677).

57042259 is a wasteful number, since it uses less digits than its factorization.

57042259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 57042259 is about 7552.6325873830. The cubic root of 57042259 is about 384.9451971244.

The spelling of 57042259 in words is "fifty-seven million, forty-two thousand, two hundred fifty-nine".

Divisors: 1 17 61 67 821 1037 1139 4087 13957 50081 55007 69479 851377 935119 3355427 57042259