Base | Representation |
---|---|
bin | 110010110111… |
… | …001011011101 |
3 | 221002101201201 |
4 | 302313023131 |
5 | 11403130323 |
6 | 1153435501 |
7 | 221221225 |
oct | 62671335 |
9 | 27071651 |
10 | 13333213 |
11 | 7587493 |
12 | 456bb91 |
13 | 29baa9a |
14 | 1ab1085 |
15 | 12858ad |
hex | cb72dd |
13333213 has 2 divisors, whose sum is σ = 13333214. Its totient is φ = 13333212.
The previous prime is 13333211. The next prime is 13333217. The reversal of 13333213 is 31233331.
13333213 is digitally balanced in base 3, 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., 13155129 + 178084 = 3627^2 + 422^2 .
It is a cyclic number.
It is not a de Polignac number, because 13333213 - 21 = 13333211 is a prime.
Together with 13333211, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13333211) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6666606 + 6666607.
It is an arithmetic number, because the mean of its divisors is an integer number (6666607).
Almost surely, 213333213 is an apocalyptic number.
It is an amenable number.
13333213 is a deficient number, since it is larger than the sum of its proper divisors (1).
13333213 is an equidigital number, since it uses as much as digits as its factorization.
13333213 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 486, while the sum is 19.
The square root of 13333213 is about 3651.4672393437. The cubic root of 13333213 is about 237.1255069425.
Adding to 13333213 its reverse (31233331), we get a palindrome (44566544).
The spelling of 13333213 in words is "thirteen million, three hundred thirty-three thousand, two hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •