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57286377886 = 2231518247391
BaseRepresentation
bin110101010110100010…
…001100000110011110
312110212101102112000111
4311112202030012132
51414310303043021
642152245520234
74065416114653
oct652642140636
9173771375014
1057286377886
1122327737661
12b12911307a
13552c4b432a
142ab6315c2a
1517543cb8e1
hexd5688c19e

57286377886 has 16 divisors (see below), whose sum is σ = 90259458048. Its totient is φ = 27216387000.

The previous prime is 57286377851. The next prime is 57286377893. The reversal of 57286377886 is 68877368275.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4116750 + ... + 4130641.

It is an arithmetic number, because the mean of its divisors is an integer number (5641216128).

Almost surely, 257286377886 is an apocalyptic number.

57286377886 is a deficient number, since it is larger than the sum of its proper divisors (32973080162).

57286377886 is a wasteful number, since it uses less digits than its factorization.

57286377886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8247567.

The product of its digits is 189665280, while the sum is 67.

The spelling of 57286377886 in words is "fifty-seven billion, two hundred eighty-six million, three hundred seventy-seven thousand, eight hundred eighty-six".

Divisors: 1 2 23 46 151 302 3473 6946 8247391 16494782 189689993 379379986 1245356041 2490712082 28643188943 57286377886