Search a number
-
+
57116786 = 2131218003
BaseRepresentation
bin1101100111100…
…0100001110010
310222110211111112
43121320201302
5104110214121
65400113322
71262325146
oct331704162
9128424445
1057116786
112a271761
1217165842
13baaa81c
14782b226
15503375b
hex3678872

57116786 has 8 divisors (see below), whose sum is σ = 86329584. Its totient is φ = 28340260.

The previous prime is 57116783. The next prime is 57116791. The reversal of 57116786 is 68761175.

57116786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57116783) 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, 108740 + ... + 109263.

It is an arithmetic number, because the mean of its divisors is an integer number (10791198).

Almost surely, 257116786 is an apocalyptic number.

57116786 is a deficient number, since it is larger than the sum of its proper divisors (29212798).

57116786 is a wasteful number, since it uses less digits than its factorization.

57116786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218136.

The product of its digits is 70560, while the sum is 41.

The square root of 57116786 is about 7557.5648194375. The cubic root of 57116786 is about 385.1127706981.

The spelling of 57116786 in words is "fifty-seven million, one hundred sixteen thousand, seven hundred eighty-six".

Divisors: 1 2 131 262 218003 436006 28558393 57116786