Search a number
-
+
57486266887 = 7171992427527
BaseRepresentation
bin110101100010011100…
…101101001000000111
312111101022112221011211
4311202130231020013
51420212441020022
642224150112251
74103364130510
oct654234551007
9174338487154
1057486266887
112241a554185
12b18404b687
135561a2cc4a
142ad4aa9a07
151766c12e77
hexd6272d207

57486266887 has 16 divisors (see below), whose sum is σ = 69912806400. Its totient is φ = 46142414208.

The previous prime is 57486266869. The next prime is 57486266897. The reversal of 57486266887 is 78866268475.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57486266887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57486266897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1190083 + ... + 1237444.

It is an arithmetic number, because the mean of its divisors is an integer number (4369550400).

Almost surely, 257486266887 is an apocalyptic number.

57486266887 is a deficient number, since it is larger than the sum of its proper divisors (12426539513).

57486266887 is a wasteful number, since it uses less digits than its factorization.

57486266887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427750.

The product of its digits is 216760320, while the sum is 67.

The spelling of 57486266887 in words is "fifty-seven billion, four hundred eighty-six million, two hundred sixty-six thousand, eight hundred eighty-seven".

Divisors: 1 7 17 119 199 1393 3383 23681 2427527 16992689 41267959 288875713 483077873 3381545111 8212323841 57486266887