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57191075924 = 2214297768981
BaseRepresentation
bin110101010000110110…
…101001000001010100
312110121202002200022012
4311100312221001110
51414111403412144
642135003123352
74063151060453
oct652066510124
9173552080265
1057191075924
1122288964904
12b101213558
135515827038
142aa77c8b9a
15174ad53e9e
hexd50da9054

57191075924 has 6 divisors (see below), whose sum is σ = 100084382874. Its totient is φ = 28595537960.

The previous prime is 57191075911. The next prime is 57191076037. The reversal of 57191075924 is 42957019175.

It can be written as a sum of positive squares in only one way, i.e., 32938620100 + 24252455824 = 181490^2 + 155732^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7148884487 + ... + 7148884494.

It is an arithmetic number, because the mean of its divisors is an integer number (16680730479).

Almost surely, 257191075924 is an apocalyptic number.

It is an amenable number.

57191075924 is a deficient number, since it is larger than the sum of its proper divisors (42893306950).

57191075924 is a wasteful number, since it uses less digits than its factorization.

57191075924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14297768985 (or 14297768983 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 50.

The spelling of 57191075924 in words is "fifty-seven billion, one hundred ninety-one million, seventy-five thousand, nine hundred twenty-four".

Divisors: 1 2 4 14297768981 28595537962 57191075924