Base | Representation |
---|---|
bin | 110110001100001… |
… | …0000111100111111 |
3 | 11200201110012222201 |
4 | 1230120100330333 |
5 | 12210441101343 |
6 | 500232252331 |
7 | 63026203555 |
oct | 15430207477 |
9 | 4621405881 |
10 | 1818300223 |
11 | 853423963 |
12 | 428b410a7 |
13 | 22c9298bc |
14 | 1336bbbd5 |
15 | a997094d |
hex | 6c610f3f |
1818300223 has 2 divisors, whose sum is σ = 1818300224. Its totient is φ = 1818300222.
The previous prime is 1818300199. The next prime is 1818300241. The reversal of 1818300223 is 3220038181.
It is a strong prime.
It is an emirp because it is prime and its reverse (3220038181) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1818300223 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1818300191 and 1818300200.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1818300023) 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, 909150111 + 909150112.
It is an arithmetic number, because the mean of its divisors is an integer number (909150112).
Almost surely, 21818300223 is an apocalyptic number.
1818300223 is a deficient number, since it is larger than the sum of its proper divisors (1).
1818300223 is an equidigital number, since it uses as much as digits as its factorization.
1818300223 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2304, while the sum is 28.
The square root of 1818300223 is about 42641.5316680815. The cubic root of 1818300223 is about 1220.5489384472.
The spelling of 1818300223 in words is "one billion, eight hundred eighteen million, three hundred thousand, two hundred twenty-three".
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