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57664963 = 297327239
BaseRepresentation
bin1101101111111…
…0010111000011
311000111200110101
43123332113003
5104230234323
65415543231
71300100266
oct333762703
9130450411
1057664963
112a6065a4
121738ab17
13bc401a5
147930cdd
1550e0dad
hex36fe5c3

57664963 has 8 divisors (see below), whose sum is σ = 60472800. Its totient is φ = 54911808.

The previous prime is 57664949. The next prime is 57664967. The reversal of 57664963 is 36946675.

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 57664963 - 25 = 57664931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57664967) 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, 11503 + ... + 15736.

It is an arithmetic number, because the mean of its divisors is an integer number (7559100).

Almost surely, 257664963 is an apocalyptic number.

57664963 is a deficient number, since it is larger than the sum of its proper divisors (2807837).

57664963 is a wasteful number, since it uses less digits than its factorization.

57664963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27341.

The product of its digits is 816480, while the sum is 46.

The square root of 57664963 is about 7593.7449917679. The cubic root of 57664963 is about 386.3408869952.

The spelling of 57664963 in words is "fifty-seven million, six hundred sixty-four thousand, nine hundred sixty-three".

Divisors: 1 29 73 2117 27239 789931 1988447 57664963