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57044073 = 3295871117
BaseRepresentation
bin1101100110011…
…0110001101001
310222100010202110
43121212301221
5104100402243
65354352533
71261603152
oct331466151
9128303673
1057044073
112a222069
121712b749
13ba836b8
14780c929
15501be33
hex3666c69

57044073 has 16 divisors (see below), whose sum is σ = 78886080. Its totient is φ = 36622656.

The previous prime is 57044063. The next prime is 57044077. The reversal of 57044073 is 37044075.

It is not a de Polignac number, because 57044073 - 28 = 57043817 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57044073.

It is not an unprimeable number, because it can be changed into a prime (57044077) 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, 50511 + ... + 51627.

It is an arithmetic number, because the mean of its divisors is an integer number (4930380).

Almost surely, 257044073 is an apocalyptic number.

It is an amenable number.

57044073 is a deficient number, since it is larger than the sum of its proper divisors (21842007).

57044073 is a wasteful number, since it uses less digits than its factorization.

57044073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 57044073 is about 7552.7526770046. The cubic root of 57044073 is about 384.9492776266.

The spelling of 57044073 in words is "fifty-seven million, forty-four thousand, seventy-three".

Divisors: 1 3 29 87 587 1117 1761 3351 17023 32393 51069 97179 655679 1967037 19014691 57044073