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6664468223 = 75297179737
BaseRepresentation
bin1100011010011101…
…11011011011111111
3122012110101001201102
412031032323123333
5102122100440343
63021150403315
7324103021340
oct61516733377
918173331642
106664468223
11290aa11686
12135bb0053b
1382294732a
144731780c7
1529013c3b8
hex18d3bb6ff

6664468223 has 8 divisors (see below), whose sum is σ = 7618015392. Its totient is φ = 5711291136.

The previous prime is 6664468189. The next prime is 6664468241. The reversal of 6664468223 is 3228644666.

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 6664468223 - 26 = 6664468159 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 (6664468243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52790 + ... + 126947.

It is an arithmetic number, because the mean of its divisors is an integer number (952251924).

Almost surely, 26664468223 is an apocalyptic number.

6664468223 is a deficient number, since it is larger than the sum of its proper divisors (953547169).

6664468223 is a wasteful number, since it uses less digits than its factorization.

6664468223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185041.

The product of its digits is 1990656, while the sum is 47.

The square root of 6664468223 is about 81636.1943196766. The cubic root of 6664468223 is about 1881.8651535472.

The spelling of 6664468223 in words is "six billion, six hundred sixty-four million, four hundred sixty-eight thousand, two hundred twenty-three".

Divisors: 1 7 5297 37079 179737 1258159 952066889 6664468223