Base | Representation |
---|---|
bin | 111001101101… |
… | …1101010000001 |
3 | 2002221100200212 |
4 | 1303123222001 |
5 | 30221303331 |
6 | 3000323505 |
7 | 515130053 |
oct | 163335201 |
9 | 62840625 |
10 | 30259841 |
11 | 16098737 |
12 | a173595 |
13 | 6366341 |
14 | 40398d3 |
15 | 29cad2b |
hex | 1cdba81 |
30259841 has 2 divisors, whose sum is σ = 30259842. Its totient is φ = 30259840.
The previous prime is 30259819. The next prime is 30259849. The reversal of 30259841 is 14895203.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 30030400 + 229441 = 5480^2 + 479^2 .
It is an emirp because it is prime and its reverse (14895203) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30259841 - 26 = 30259777 is a prime.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 30259798 and 30259807.
It is not a weakly prime, because it can be changed into another prime (30259849) 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, 15129920 + 15129921.
It is an arithmetic number, because the mean of its divisors is an integer number (15129921).
Almost surely, 230259841 is an apocalyptic number.
It is an amenable number.
30259841 is a deficient number, since it is larger than the sum of its proper divisors (1).
30259841 is an equidigital number, since it uses as much as digits as its factorization.
30259841 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 8640, while the sum is 32.
The square root of 30259841 is about 5500.8945636142. The cubic root of 30259841 is about 311.6177689627.
The spelling of 30259841 in words is "thirty million, two hundred fifty-nine thousand, eight hundred forty-one".
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