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57807143423450 = 2521156142868469
BaseRepresentation
bin11010010010011010001100…
…01111111100110111011010
321120200022100012212111021122
431021031012033330313122
530034103012204022300
6322540122435405242
715114266621531651
oct1511150617746732
9246608305774248
1057807143423450
1117467965484973
1265974b3453822
132634261c39545
14103bc487b8198
156a3a6a84ac85
hex3493463fcdda

57807143423450 has 12 divisors (see below), whose sum is σ = 107521286767710. Its totient is φ = 23122857369360.

The previous prime is 57807143423411. The next prime is 57807143423479. The reversal of 57807143423450 is 5432434170875.

It can be written as a sum of positive squares in 3 ways, for example, as 49636012550089 + 8171130873361 = 7045283^2 + 2858519^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57807143423392 and 57807143423401.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578071434185 + ... + 578071434284.

Almost surely, 257807143423450 is an apocalyptic number.

57807143423450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57807143423450 is a deficient number, since it is larger than the sum of its proper divisors (49714143344260).

57807143423450 is a wasteful number, since it uses less digits than its factorization.

57807143423450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156142868481 (or 1156142868476 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 53.

The spelling of 57807143423450 in words is "fifty-seven trillion, eight hundred seven billion, one hundred forty-three million, four hundred twenty-three thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 1156142868469 2312285736938 5780714342345 11561428684690 28903571711725 57807143423450