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223330213 is a prime number
BaseRepresentation
bin11010100111110…
…11111110100101
3120120020100110101
431103323332211
5424133031323
634054424101
75351163331
oct1523737645
9516210411
10223330213
11105078327
1262962031
1337365472
14219367c1
1514916dad
hexd4fbfa5

223330213 has 2 divisors, whose sum is σ = 223330214. Its totient is φ = 223330212.

The previous prime is 223330201. The next prime is 223330223. The reversal of 223330213 is 312033322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220433409 + 2896804 = 14847^2 + 1702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-223330213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223330223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111665106 + 111665107.

It is an arithmetic number, because the mean of its divisors is an integer number (111665107).

Almost surely, 2223330213 is an apocalyptic number.

It is an amenable number.

223330213 is a deficient number, since it is larger than the sum of its proper divisors (1).

223330213 is an equidigital number, since it uses as much as digits as its factorization.

223330213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 223330213 is about 14944.2367821177. The cubic root of 223330213 is about 606.7118722436.

Adding to 223330213 its reverse (312033322), we get a palindrome (535363535).

The spelling of 223330213 in words is "two hundred twenty-three million, three hundred thirty thousand, two hundred thirteen".