Base | Representation |
---|---|
bin | 101110101100… |
… | …100110101001 |
3 | 212000220221021 |
4 | 232230212221 |
5 | 11113210241 |
6 | 1114212441 |
7 | 206022661 |
oct | 56544651 |
9 | 25026837 |
10 | 12241321 |
11 | 6a010a4 |
12 | 4124121 |
13 | 26c7ab1 |
14 | 18a91a1 |
15 | 111c0d1 |
hex | bac9a9 |
12241321 has 4 divisors (see below), whose sum is σ = 12274000. Its totient is φ = 12208644.
The previous prime is 12241319. The next prime is 12241331. The reversal of 12241321 is 12314221.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12314221 = 887 ⋅13883.
It is a cyclic number.
It is not a de Polignac number, because 12241321 - 21 = 12241319 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12241295 and 12241304.
It is not an unprimeable number, because it can be changed into a prime (12241331) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15771 + ... + 16528.
It is an arithmetic number, because the mean of its divisors is an integer number (3068500).
Almost surely, 212241321 is an apocalyptic number.
It is an amenable number.
12241321 is a deficient number, since it is larger than the sum of its proper divisors (32679).
12241321 is an equidigital number, since it uses as much as digits as its factorization.
12241321 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32678.
The product of its digits is 96, while the sum is 16.
The square root of 12241321 is about 3498.7599231728. The cubic root of 12241321 is about 230.4673609565.
Adding to 12241321 its reverse (12314221), we get a palindrome (24555542).
Subtracting 12241321 from its reverse (12314221), we obtain a square (72900 = 2702).
The spelling of 12241321 in words is "twelve million, two hundred forty-one thousand, three hundred twenty-one".
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