Base | Representation |
---|---|
bin | 111010110000… |
… | …0000001111011 |
3 | 2010221220110102 |
4 | 1311200001323 |
5 | 30341131133 |
6 | 3020110015 |
7 | 522545606 |
oct | 165400173 |
9 | 63856412 |
10 | 30802043 |
11 | 16429038 |
12 | a39530b |
13 | 64c607c |
14 | 413b33d |
15 | 2a867e8 |
hex | 1d6007b |
30802043 has 2 divisors, whose sum is σ = 30802044. Its totient is φ = 30802042.
The previous prime is 30802027. The next prime is 30802049. The reversal of 30802043 is 34020803.
It is a strong prime.
It is an emirp because it is prime and its reverse (34020803) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30802043 - 24 = 30802027 is a prime.
It is a Sophie Germain prime.
It is not a weakly prime, because it can be changed into another prime (30802049) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15401021 + 15401022.
It is an arithmetic number, because the mean of its divisors is an integer number (15401022).
Almost surely, 230802043 is an apocalyptic number.
30802043 is a deficient number, since it is larger than the sum of its proper divisors (1).
30802043 is an equidigital number, since it uses as much as digits as its factorization.
30802043 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 30802043 is about 5549.9588286761. The cubic root of 30802043 is about 313.4679720407.
Adding to 30802043 its reverse (34020803), we get a palindrome (64822846).
The spelling of 30802043 in words is "thirty million, eight hundred two thousand, forty-three".
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