Base | Representation |
---|---|
bin | 11001011011101… |
… | …00100100000011 |
3 | 112212102201020011 |
4 | 30231310210003 |
5 | 414103311441 |
6 | 33100325351 |
7 | 5200226521 |
oct | 1455644403 |
9 | 485381204 |
10 | 213338371 |
11 | aa473304 |
12 | 5b543857 |
13 | 3527752c |
14 | 20495311 |
15 | 13ae1581 |
hex | cb74903 |
213338371 has 2 divisors, whose sum is σ = 213338372. Its totient is φ = 213338370.
The previous prime is 213338369. The next prime is 213338393. The reversal of 213338371 is 173833312.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 213338371 - 21 = 213338369 is a prime.
Together with 213338369, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (213338341) 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 as a sum of consecutive naturals, namely, 106669185 + 106669186.
It is an arithmetic number, because the mean of its divisors is an integer number (106669186).
Almost surely, 2213338371 is an apocalyptic number.
213338371 is a deficient number, since it is larger than the sum of its proper divisors (1).
213338371 is an equidigital number, since it uses as much as digits as its factorization.
213338371 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 9072, while the sum is 31.
The square root of 213338371 is about 14606.1073185158. The cubic root of 213338371 is about 597.5253361338.
It can be divided in two parts, 2133 and 38371, that added together give a palindrome (40504).
The spelling of 213338371 in words is "two hundred thirteen million, three hundred thirty-eight thousand, three hundred seventy-one".
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