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57641371 = 431340497
BaseRepresentation
bin1101101111100…
…0100110011011
311000110111002121
43123320212123
5104224010441
65415242111
71266641434
oct333704633
9130414077
1057641371
112a59a8a7
1217379337
13bc32528
14792648b
1550d8dd1
hex36f899b

57641371 has 4 divisors (see below), whose sum is σ = 58981912. Its totient is φ = 56300832.

The previous prime is 57641359. The next prime is 57641417. The reversal of 57641371 is 17314675.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57641371 - 29 = 57640859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57641321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670206 + ... + 670291.

It is an arithmetic number, because the mean of its divisors is an integer number (14745478).

Almost surely, 257641371 is an apocalyptic number.

57641371 is a deficient number, since it is larger than the sum of its proper divisors (1340541).

57641371 is a wasteful number, since it uses less digits than its factorization.

57641371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340540.

The product of its digits is 17640, while the sum is 34.

The square root of 57641371 is about 7592.1914491140. The cubic root of 57641371 is about 386.2881929675.

The spelling of 57641371 in words is "fifty-seven million, six hundred forty-one thousand, three hundred seventy-one".

Divisors: 1 43 1340497 57641371