Base | Representation |
---|---|
bin | 11111101000100… |
… | …001001000001101 |
3 | 1100222122010022122 |
4 | 133220201020031 |
5 | 2041330341044 |
6 | 124355022325 |
7 | 16103001326 |
oct | 3750411015 |
9 | 1328563278 |
10 | 530715149 |
11 | 252636168 |
12 | 12989a9a5 |
13 | 85c4a743 |
14 | 506ad44d |
15 | 318d3dee |
hex | 1fa2120d |
530715149 has 2 divisors, whose sum is σ = 530715150. Its totient is φ = 530715148.
The previous prime is 530715137. The next prime is 530715151. The reversal of 530715149 is 941517035.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 411359524 + 119355625 = 20282^2 + 10925^2 .
It is a cyclic number.
It is not a de Polignac number, because 530715149 - 212 = 530711053 is a prime.
It is a Sophie Germain prime.
Together with 530715151, it forms a pair of twin primes.
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 (530715169) 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, 265357574 + 265357575.
It is an arithmetic number, because the mean of its divisors is an integer number (265357575).
Almost surely, 2530715149 is an apocalyptic number.
It is an amenable number.
530715149 is a deficient number, since it is larger than the sum of its proper divisors (1).
530715149 is an equidigital number, since it uses as much as digits as its factorization.
530715149 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 18900, while the sum is 35.
The square root of 530715149 is about 23037.2556742334. The cubic root of 530715149 is about 809.6310614689.
The spelling of 530715149 in words is "five hundred thirty million, seven hundred fifteen thousand, one hundred forty-nine".
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