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57247474743 = 3223985728057
BaseRepresentation
bin110101010100001101…
…110010010000110111
312110202200020000221100
4311110031302100313
51414220323142433
642144340021143
74064434335504
oct652415622067
9173680200840
1057247474743
11223077860a8
12b1180917b3
135524412b14
142ab10aa4ab
151750c94b13
hexd54372437

57247474743 has 24 divisors (see below), whose sum is σ = 86297878368. Its totient is φ = 36500631552.

The previous prime is 57247474693. The next prime is 57247474763. The reversal of 57247474743 is 34747474275.

57247474743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57247474743 - 29 = 57247474231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57247474743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57247474763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2026371 + ... + 2054427.

It is an arithmetic number, because the mean of its divisors is an integer number (3595744932).

Almost surely, 257247474743 is an apocalyptic number.

57247474743 is a deficient number, since it is larger than the sum of its proper divisors (29050403625).

57247474743 is a wasteful number, since it uses less digits than its factorization.

57247474743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37943 (or 37940 counting only the distinct ones).

The product of its digits is 18439680, while the sum is 54.

The spelling of 57247474743 in words is "fifty-seven billion, two hundred forty-seven million, four hundred seventy-four thousand, seven hundred forty-three".

Divisors: 1 3 9 23 69 207 9857 28057 29571 84171 88713 226711 252513 645311 680133 1935933 2040399 5807799 276557849 829673547 2489020641 6360830527 19082491581 57247474743