Base | Representation |
---|---|
bin | 101101110010… |
… | …001110101111 |
3 | 211120202221210 |
4 | 231302032233 |
5 | 11033032343 |
6 | 1105125503 |
7 | 204005622 |
oct | 55621657 |
9 | 24522853 |
10 | 12002223 |
11 | 68584a2 |
12 | 4029893 |
13 | 264300c |
14 | 1845db9 |
15 | 10c1333 |
hex | b723af |
12002223 has 4 divisors (see below), whose sum is σ = 16002968. Its totient is φ = 8001480.
The previous prime is 12002213. The next prime is 12002231. The reversal of 12002223 is 32220021.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 12002223 - 212 = 11998127 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12002199 and 12002208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12002213) 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, 2000368 + ... + 2000373.
It is an arithmetic number, because the mean of its divisors is an integer number (4000742).
Almost surely, 212002223 is an apocalyptic number.
12002223 is a deficient number, since it is larger than the sum of its proper divisors (4000745).
12002223 is an equidigital number, since it uses as much as digits as its factorization.
12002223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4000744.
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 12002223 is about 3464.4224626913. The cubic root of 12002223 is about 228.9569848587.
Adding to 12002223 its reverse (32220021), we get a palindrome (44222244).
The spelling of 12002223 in words is "twelve million, two thousand, two hundred twenty-three".
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