Base | Representation |
---|---|
bin | 1000011100010100010111 |
3 | 11011102212021 |
4 | 20130110113 |
5 | 1031310033 |
6 | 115234011 |
7 | 24545212 |
oct | 10342427 |
9 | 4142767 |
10 | 2213143 |
11 | 1281849 |
12 | 8a8907 |
13 | 5c646a |
14 | 418779 |
15 | 2dab2d |
hex | 21c517 |
2213143 has 2 divisors, whose sum is σ = 2213144. Its totient is φ = 2213142.
The previous prime is 2213137. The next prime is 2213147. The reversal of 2213143 is 3413122.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2213143 - 29 = 2212631 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2213147) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106571 + 1106572.
It is an arithmetic number, because the mean of its divisors is an integer number (1106572).
22213143 is an apocalyptic number.
2213143 is a deficient number, since it is larger than the sum of its proper divisors (1).
2213143 is an equidigital number, since it uses as much as digits as its factorization.
2213143 is an evil number, because the sum of its binary digits is even.
The product of its digits is 144, while the sum is 16.
The square root of 2213143 is about 1487.6636044483. The cubic root of 2213143 is about 130.3176256881.
Adding to 2213143 its reverse (3413122), we get a palindrome (5626265).
It can be divided in two parts, 221 and 3143, that added together give a square (3364 = 582).
The spelling of 2213143 in words is "two million, two hundred thirteen thousand, one hundred forty-three".
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