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57116771 = 431328297
BaseRepresentation
bin1101100111100…
…0100001100011
310222110211110222
43121320201203
5104110214041
65400113255
71262325125
oct331704143
9128424428
1057116771
112a271748
121716582b
13baaa80a
14782b215
15503374b
hex3678863

57116771 has 4 divisors (see below), whose sum is σ = 58445112. Its totient is φ = 55788432.

The previous prime is 57116723. The next prime is 57116777. The reversal of 57116771 is 17761175.

57116771 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.

It is a cyclic number.

It is not a de Polignac number, because 57116771 - 214 = 57100387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57116777) 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, 664106 + ... + 664191.

It is an arithmetic number, because the mean of its divisors is an integer number (14611278).

Almost surely, 257116771 is an apocalyptic number.

57116771 is a deficient number, since it is larger than the sum of its proper divisors (1328341).

57116771 is a wasteful number, since it uses less digits than its factorization.

57116771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328340.

The product of its digits is 10290, while the sum is 35.

The square root of 57116771 is about 7557.5638270543. The cubic root of 57116771 is about 385.1127369853.

The spelling of 57116771 in words is "fifty-seven million, one hundred sixteen thousand, seven hundred seventy-one".

Divisors: 1 43 1328297 57116771