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57143613868 = 22111492986993
BaseRepresentation
bin110101001110000001…
…100101100110101100
312110111102210100121021
4311032001211212230
51414012231120433
642130145543524
74062033463225
oct651601454654
9173442710537
1057143613868
1122264097970
12b0a9344ba4
135508a49b93
142aa139224c
151746acb22d
hexd4e0659ac

57143613868 has 24 divisors (see below), whose sum is σ = 109100915280. Its totient is φ = 25972331520.

The previous prime is 57143613823. The next prime is 57143613869. The reversal of 57143613868 is 86831634175.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57143613869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613380 + ... + 700372.

It is an arithmetic number, because the mean of its divisors is an integer number (4545871470).

Almost surely, 257143613868 is an apocalyptic number.

It is an amenable number.

57143613868 is a deficient number, since it is larger than the sum of its proper divisors (51957301412).

57143613868 is a wasteful number, since it uses less digits than its factorization.

57143613868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101937 (or 101935 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The spelling of 57143613868 in words is "fifty-seven billion, one hundred forty-three million, six hundred thirteen thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 22 44 14929 29858 59716 86993 164219 173986 328438 347972 656876 956923 1913846 3827692 1298718497 2597436994 5194873988 14285903467 28571806934 57143613868