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223423441 is a prime number
BaseRepresentation
bin11010101000100…
…10101111010001
3120120102002100021
431110102233101
5424144022231
634100423441
75352032203
oct1524225721
9516362307
10223423441
1110513137a
12629a7b81
1337398a27
142195c773
1514934811
hexd512bd1

223423441 has 2 divisors, whose sum is σ = 223423442. Its totient is φ = 223423440.

The previous prime is 223423393. The next prime is 223423463. The reversal of 223423441 is 144324322.

It is a happy number.

223423441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155525841 + 67897600 = 12471^2 + 8240^2 .

It is a cyclic number.

It is not a de Polignac number, because 223423441 - 29 = 223422929 is a prime.

It is not a weakly prime, because it can be changed into another prime (223423471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111711720 + 111711721.

It is an arithmetic number, because the mean of its divisors is an integer number (111711721).

Almost surely, 2223423441 is an apocalyptic number.

It is an amenable number.

223423441 is a deficient number, since it is larger than the sum of its proper divisors (1).

223423441 is an equidigital number, since it uses as much as digits as its factorization.

223423441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 25.

The square root of 223423441 is about 14947.3556524223. The cubic root of 223423441 is about 606.7962833717.

Adding to 223423441 its reverse (144324322), we get a palindrome (367747763).

The spelling of 223423441 in words is "two hundred twenty-three million, four hundred twenty-three thousand, four hundred forty-one".