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3205223 = 7457889
BaseRepresentation
bin1100001110100001100111
320000211201222
430032201213
51310031343
6152410555
736146450
oct14164147
96024658
103205223
11189a14a
1210a6a5b
13882ba8
145d6127
15434a68
hex30e867

3205223 has 4 divisors (see below), whose sum is σ = 3663120. Its totient is φ = 2747328.

The previous prime is 3205219. The next prime is 3205253. The reversal of 3205223 is 3225023.

3205223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3225023 = 31104033.

It is a cyclic number.

It is not a de Polignac number, because 3205223 - 22 = 3205219 is a prime.

It is a d-powerful number, because it can be written as 313 + 22 + 0 + 53 + 26 + 214 + 313 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205253) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 228938 + ... + 228951.

It is an arithmetic number, because the mean of its divisors is an integer number (915780).

Almost surely, 23205223 is an apocalyptic number.

3205223 is a deficient number, since it is larger than the sum of its proper divisors (457897).

3205223 is an equidigital number, since it uses as much as digits as its factorization.

3205223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457896.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 3205223 is about 1790.3136596697. The cubic root of 3205223 is about 147.4413901011.

The spelling of 3205223 in words is "three million, two hundred five thousand, two hundred twenty-three".

Divisors: 1 7 457889 3205223