Base | Representation |
---|---|
bin | 111010101111… |
… | …0001100010001 |
3 | 2010221112010112 |
4 | 1311132030101 |
5 | 30340411023 |
6 | 3020011105 |
7 | 522514631 |
oct | 165361421 |
9 | 63845115 |
10 | 30794513 |
11 | 16423412 |
12 | a390a95 |
13 | 64c2809 |
14 | 41386c1 |
15 | 2a84478 |
hex | 1d5e311 |
30794513 has 2 divisors, whose sum is σ = 30794514. Its totient is φ = 30794512.
The previous prime is 30794503. The next prime is 30794551. The reversal of 30794513 is 31549703.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 28912129 + 1882384 = 5377^2 + 1372^2 .
It is a cyclic number.
It is not a de Polignac number, because 30794513 - 214 = 30778129 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30794513.
It is not a weakly prime, because it can be changed into another prime (30794503) 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, 15397256 + 15397257.
It is an arithmetic number, because the mean of its divisors is an integer number (15397257).
Almost surely, 230794513 is an apocalyptic number.
It is an amenable number.
30794513 is a deficient number, since it is larger than the sum of its proper divisors (1).
30794513 is an equidigital number, since it uses as much as digits as its factorization.
30794513 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 11340, while the sum is 32.
The square root of 30794513 is about 5549.2804038001. The cubic root of 30794513 is about 313.4424260490.
The spelling of 30794513 in words is "thirty million, seven hundred ninety-four thousand, five hundred thirteen".
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