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57950643943 = 299799720663
BaseRepresentation
bin110101111110001000…
…001010011011100111
312112120200100201202001
4311332020022123213
51422140331101233
642342215230131
74121033226463
oct657610123347
9175520321661
1057950643943
112263869a575
12b293678347
135606cc187a
142b3a62b4a3
15179289127d
hexd7e20a6e7

57950643943 has 16 divisors (see below), whose sum is σ = 60630655680. Its totient is φ = 55317298176.

The previous prime is 57950643917. The next prime is 57950643973. The reversal of 57950643943 is 34934605975.

It is a cyclic number.

It is not a de Polignac number, because 57950643943 - 213 = 57950635751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57950643913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2794230 + ... + 2814892.

It is an arithmetic number, because the mean of its divisors is an integer number (3789415980).

Almost surely, 257950643943 is an apocalyptic number.

57950643943 is a deficient number, since it is larger than the sum of its proper divisors (2680011737).

57950643943 is a wasteful number, since it uses less digits than its factorization.

57950643943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21786.

The product of its (nonzero) digits is 12247200, while the sum is 55.

The spelling of 57950643943 in words is "fifty-seven billion, nine hundred fifty million, six hundred forty-three thousand, nine hundred forty-three".

Divisors: 1 29 97 997 2813 20663 28913 96709 599227 2004311 2804561 20601011 58125019 597429319 1998298067 57950643943