Base | Representation |
---|---|
bin | 11000101000011100… |
… | …11001101011011001 |
3 | 1021010121201001101211 |
4 | 30110032121223121 |
5 | 204040400041101 |
6 | 10024120543121 |
7 | 645465012226 |
oct | 142416315331 |
9 | 37117631354 |
10 | 13224221401 |
11 | 56768012a6 |
12 | 2690921aa1 |
13 | 13299899a1 |
14 | 8d645494d |
15 | 525e92c51 |
hex | 314399ad9 |
13224221401 has 2 divisors, whose sum is σ = 13224221402. Its totient is φ = 13224221400.
The previous prime is 13224221399. The next prime is 13224221449. The reversal of 13224221401 is 10412242231.
13224221401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12480241225 + 743980176 = 111715^2 + 27276^2 .
It is a cyclic number.
It is not a de Polignac number, because 13224221401 - 21 = 13224221399 is a prime.
Together with 13224221399, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (13224221201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6612110700 + 6612110701.
It is an arithmetic number, because the mean of its divisors is an integer number (6612110701).
Almost surely, 213224221401 is an apocalyptic number.
It is an amenable number.
13224221401 is a deficient number, since it is larger than the sum of its proper divisors (1).
13224221401 is an equidigital number, since it uses as much as digits as its factorization.
13224221401 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 768, while the sum is 22.
Adding to 13224221401 its reverse (10412242231), we get a palindrome (23636463632).
The spelling of 13224221401 in words is "thirteen billion, two hundred twenty-four million, two hundred twenty-one thousand, four hundred one".
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