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223130213 is a prime number
BaseRepresentation
bin11010100110010…
…11001001100101
3120112212012002222
431103023021211
5424110131323
634050242125
75346401255
oct1523131145
9515765088
10223130213
11104a51039
1262886345
13372c5417
14218c3965
15148c79c8
hexd4cb265

223130213 has 2 divisors, whose sum is σ = 223130214. Its totient is φ = 223130212.

The previous prime is 223130111. The next prime is 223130231. The reversal of 223130213 is 312031322.

223130213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (223130231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211033729 + 12096484 = 14527^2 + 3478^2 .

It is a cyclic number.

It is not a de Polignac number, because 223130213 - 28 = 223129957 is a prime.

It is a super-3 number, since 3×2231302133 (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 223130191 and 223130200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223130273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111565106 + 111565107.

It is an arithmetic number, because the mean of its divisors is an integer number (111565107).

Almost surely, 2223130213 is an apocalyptic number.

It is an amenable number.

223130213 is a deficient number, since it is larger than the sum of its proper divisors (1).

223130213 is an equidigital number, since it uses as much as digits as its factorization.

223130213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 223130213 is about 14937.5437405217. The cubic root of 223130213 is about 606.5307076011.

Adding to 223130213 its reverse (312031322), we get a palindrome (535161535).

The spelling of 223130213 in words is "two hundred twenty-three million, one hundred thirty thousand, two hundred thirteen".