Base | Representation |
---|---|
bin | 1000010001110001… |
… | …0110001000111111 |
3 | 12201212010110211201 |
4 | 2010130112020333 |
5 | 14022314220411 |
6 | 1004253400331 |
7 | 106030612561 |
oct | 20434261077 |
9 | 5655113751 |
10 | 2222023231 |
11 | a40301a3a |
12 | 5201990a7 |
13 | 29547295c |
14 | 171171331 |
15 | d011c3c1 |
hex | 8471623f |
2222023231 has 2 divisors, whose sum is σ = 2222023232. Its totient is φ = 2222023230.
The previous prime is 2222023213. The next prime is 2222023241. The reversal of 2222023231 is 1323202222.
Together with previous prime (2222023213) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2222023231 - 27 = 2222023103 is a prime.
It is a super-2 number, since 2×22220232312 = 9874774478207358722, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2222023199 and 2222023208.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2222023201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111011615 + 1111011616.
It is an arithmetic number, because the mean of its divisors is an integer number (1111011616).
Almost surely, 22222023231 is an apocalyptic number.
2222023231 is a deficient number, since it is larger than the sum of its proper divisors (1).
2222023231 is an equidigital number, since it uses as much as digits as its factorization.
2222023231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 576, while the sum is 19.
The square root of 2222023231 is about 47138.3414112122. The cubic root of 2222023231 is about 1304.9169280121.
Adding to 2222023231 its reverse (1323202222), we get a palindrome (3545225453).
It can be divided in two parts, 22220 and 23231, that added together give a triangular number (45451 = T301).
The spelling of 2222023231 in words is "two billion, two hundred twenty-two million, twenty-three thousand, two hundred thirty-one".
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