Base | Representation |
---|---|
bin | 111001101000… |
… | …0010011011101 |
3 | 2002211222220122 |
4 | 1303100103131 |
5 | 30213311331 |
6 | 2555324325 |
7 | 514544354 |
oct | 163202335 |
9 | 62758818 |
10 | 30213341 |
11 | 16066804 |
12 | a1506a5 |
13 | 634b122 |
14 | 402699b |
15 | 29bc17b |
hex | 1cd04dd |
30213341 has 2 divisors, whose sum is σ = 30213342. Its totient is φ = 30213340.
The previous prime is 30213319. The next prime is 30213353. The reversal of 30213341 is 14331203.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 18957316 + 11256025 = 4354^2 + 3355^2 .
It is an emirp because it is prime and its reverse (14331203) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30213341 - 26 = 30213277 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30213541) 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, 15106670 + 15106671.
It is an arithmetic number, because the mean of its divisors is an integer number (15106671).
Almost surely, 230213341 is an apocalyptic number.
It is an amenable number.
30213341 is a deficient number, since it is larger than the sum of its proper divisors (1).
30213341 is an equidigital number, since it uses as much as digits as its factorization.
30213341 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 30213341 is about 5496.6663533455. Note that the first 3 decimals coincide. The cubic root of 30213341 is about 311.4580671439.
Adding to 30213341 its reverse (14331203), we get a palindrome (44544544).
The spelling of 30213341 in words is "thirty million, two hundred thirteen thousand, three hundred forty-one".
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