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57143858191 = 717480200489
BaseRepresentation
bin110101001110000010…
…100001010000001111
312110111110020202202021
4311032002201100033
51414012311430231
642130155111011
74062035531440
oct651602412017
9173443222667
1057143858191
1122264244492
12b0a9442467
135508b04154
142aa14172c7
151746b28811
hexd4e0a140f

57143858191 has 8 divisors (see below), whose sum is σ = 69148870560. Its totient is φ = 46099246848.

The previous prime is 57143858173. The next prime is 57143858207. The reversal of 57143858191 is 19185834175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57143858191 - 215 = 57143825423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57143858131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240100126 + ... + 240100363.

It is an arithmetic number, because the mean of its divisors is an integer number (8643608820).

Almost surely, 257143858191 is an apocalyptic number.

57143858191 is a deficient number, since it is larger than the sum of its proper divisors (12005012369).

57143858191 is a wasteful number, since it uses less digits than its factorization.

57143858191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480200513.

The product of its digits is 1209600, while the sum is 52.

The spelling of 57143858191 in words is "fifty-seven billion, one hundred forty-three million, eight hundred fifty-eight thousand, one hundred ninety-one".

Divisors: 1 7 17 119 480200489 3361403423 8163408313 57143858191