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6864065 = 513105601
BaseRepresentation
bin11010001011110011000001
3110220201201122
4122023303001
53224122230
6403042025
7112225565
oct32136301
913821648
106864065
11396908a
122370315
1315643a0
14ca96a5
15908be5
hex68bcc1

6864065 has 8 divisors (see below), whose sum is σ = 8870568. Its totient is φ = 5068800.

The previous prime is 6864059. The next prime is 6864079. The reversal of 6864065 is 5604686.

It can be written as a sum of positive squares in 4 ways, for example, as 1256641 + 5607424 = 1121^2 + 2368^2 .

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

It is not a de Polignac number, because 6864065 - 214 = 6847681 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52736 + ... + 52865.

It is an arithmetic number, because the mean of its divisors is an integer number (1108821).

Almost surely, 26864065 is an apocalyptic number.

6864065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6864065 is a deficient number, since it is larger than the sum of its proper divisors (2006503).

6864065 is a wasteful number, since it uses less digits than its factorization.

6864065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105619.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 6864065 is about 2619.9360679223. The cubic root of 6864065 is about 190.0467567292.

The spelling of 6864065 in words is "six million, eight hundred sixty-four thousand, sixty-five".

Divisors: 1 5 13 65 105601 528005 1372813 6864065