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57503742808 = 2319973599383
BaseRepresentation
bin110101100011011111…
…010111101101011000
312111102112102210122011
4311203133113231120
51420231424232213
642230012435304
74103665514641
oct654337275530
9174375383564
1057503742808
1122429400096
12b189a78b34
13556553b525
142ad71386c8
15176851603d
hexd637d7b58

57503742808 has 16 divisors (see below), whose sum is σ = 107873538480. Its totient is φ = 28737465888.

The previous prime is 57503742797. The next prime is 57503742811. The reversal of 57503742808 is 80824730575.

It is a super-2 number, since 2×575037428082 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1783716 + ... + 1815667.

It is an arithmetic number, because the mean of its divisors is an integer number (6742096155).

Almost surely, 257503742808 is an apocalyptic number.

It is an amenable number.

57503742808 is a deficient number, since it is larger than the sum of its proper divisors (50369795672).

57503742808 is a wasteful number, since it uses less digits than its factorization.

57503742808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601386 (or 3601382 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 57503742808 in words is "fifty-seven billion, five hundred three million, seven hundred forty-two thousand, eight hundred eight".

Divisors: 1 2 4 8 1997 3994 7988 15976 3599383 7198766 14397532 28795064 7187967851 14375935702 28751871404 57503742808