Base | Representation |
---|---|
bin | 11010100000111… |
… | …10110010011111 |
3 | 120111112022200012 |
4 | 31100132302133 |
5 | 423420033343 |
6 | 34023153435 |
7 | 5340401060 |
oct | 1520366237 |
9 | 514468605 |
10 | 222424223 |
11 | 10460967a |
12 | 625a587b |
13 | 37108c88 |
14 | 2177c567 |
15 | 147d8718 |
hex | d41ec9f |
222424223 has 4 divisors (see below), whose sum is σ = 254199120. Its totient is φ = 190649328.
The previous prime is 222424193. The next prime is 222424247. The reversal of 222424223 is 322424222.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 222424223 - 224 = 205647007 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (222424253) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15887438 + ... + 15887451.
It is an arithmetic number, because the mean of its divisors is an integer number (63549780).
Almost surely, 2222424223 is an apocalyptic number.
222424223 is a deficient number, since it is larger than the sum of its proper divisors (31774897).
222424223 is an equidigital number, since it uses as much as digits as its factorization.
222424223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31774896.
The product of its digits is 3072, while the sum is 23.
The square root of 222424223 is about 14913.8936230617. The cubic root of 222424223 is about 605.8903385822.
Adding to 222424223 its reverse (322424222), we get a palindrome (544848445).
Subtracting 222424223 from its reverse (322424222), we obtain a palindrome (99999999).
The spelling of 222424223 in words is "two hundred twenty-two million, four hundred twenty-four thousand, two hundred twenty-three".
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