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57063665 = 522735021
BaseRepresentation
bin1101100110101…
…1100011110001
310222101010122002
43121223203301
5104102014130
65355023345
71262014241
oct331534361
9128333562
1057063665
112a23585a
121713ab55
13ba8c5a9
147815b21
155022b45
hex366b8f1

57063665 has 8 divisors (see below), whose sum is σ = 68520168. Its totient is φ = 45621760.

The previous prime is 57063661. The next prime is 57063673. The reversal of 57063665 is 56636075.

It can be written as a sum of positive squares in 4 ways, for example, as 28376929 + 28686736 = 5327^2 + 5356^2 .

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

It is not a de Polignac number, because 57063665 - 22 = 57063661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57063661) 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, 8855 + ... + 13875.

It is an arithmetic number, because the mean of its divisors is an integer number (8565021).

Almost surely, 257063665 is an apocalyptic number.

It is an amenable number.

57063665 is a deficient number, since it is larger than the sum of its proper divisors (11456503).

57063665 is a wasteful number, since it uses less digits than its factorization.

57063665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 57063665 is about 7554.0495762207. The cubic root of 57063665 is about 384.9933433380.

The spelling of 57063665 in words is "fifty-seven million, sixty-three thousand, six hundred sixty-five".

Divisors: 1 5 2273 5021 11365 25105 11412733 57063665