Base | Representation |
---|---|
bin | 111001101001… |
… | …0101100000111 |
3 | 2002212111022111 |
4 | 1303102230013 |
5 | 30214114421 |
6 | 2555441451 |
7 | 514615012 |
oct | 163225407 |
9 | 62774274 |
10 | 30223111 |
11 | 16073086 |
12 | a156287 |
13 | 63526c9 |
14 | 402a379 |
15 | 29beee1 |
hex | 1cd2b07 |
30223111 has 2 divisors, whose sum is σ = 30223112. Its totient is φ = 30223110.
The previous prime is 30223099. The next prime is 30223147. The reversal of 30223111 is 11132203.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30223111 - 217 = 30092039 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30223091 and 30223100.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30223181) 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, 15111555 + 15111556.
It is an arithmetic number, because the mean of its divisors is an integer number (15111556).
Almost surely, 230223111 is an apocalyptic number.
30223111 is a deficient number, since it is larger than the sum of its proper divisors (1).
30223111 is an equidigital number, since it uses as much as digits as its factorization.
30223111 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 30223111 is about 5497.5550019986. Note that the first 3 decimals coincide. The cubic root of 30223111 is about 311.4916352883.
Adding to 30223111 its reverse (11132203), we get a palindrome (41355314).
The spelling of 30223111 in words is "thirty million, two hundred twenty-three thousand, one hundred eleven".
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