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57503742857 = 1131832119629
BaseRepresentation
bin110101100011011111…
…010111101110001001
312111102112102210200222
4311203133113232021
51420231424232412
642230012435425
74103665515041
oct654337275611
9174375383628
1057503742857
1122429400130
12b189a78b75
13556553b562
142ad7138721
151768516072
hexd637d7b89

57503742857 has 32 divisors (see below), whose sum is σ = 65852559360. Its totient is φ = 49738248000.

The previous prime is 57503742811. The next prime is 57503742871. The reversal of 57503742857 is 75824730575.

It is not a de Polignac number, because 57503742857 - 28 = 57503742601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57503742799 and 57503742808.

It is not an unprimeable number, because it can be changed into a prime (57503702857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5967119 + ... + 5976747.

It is an arithmetic number, because the mean of its divisors is an integer number (2057892480).

Almost surely, 257503742857 is an apocalyptic number.

It is an amenable number.

57503742857 is a deficient number, since it is larger than the sum of its proper divisors (8348816503).

57503742857 is a wasteful number, since it uses less digits than its factorization.

57503742857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9965.

The product of its (nonzero) digits is 8232000, while the sum is 53.

The spelling of 57503742857 in words is "fifty-seven billion, five hundred three million, seven hundred forty-two thousand, eight hundred fifty-seven".

Divisors: 1 11 31 83 211 341 913 2321 2573 6541 9629 17513 28303 71951 105919 192643 298499 542903 799207 2031719 3283489 5971933 8791277 22348909 24775417 62983289 168632677 272529587 692816179 1854959447 5227612987 57503742857