Base | Representation |
---|---|
bin | 111001110001… |
… | …0000011100001 |
3 | 2002222200122112 |
4 | 1303202003201 |
5 | 30223123144 |
6 | 3001045105 |
7 | 515266343 |
oct | 163420341 |
9 | 62880575 |
10 | 30286049 |
11 | 161063a2 |
12 | a186795 |
13 | 6375251 |
14 | 4045293 |
15 | 29d399e |
hex | 1ce20e1 |
30286049 has 2 divisors, whose sum is σ = 30286050. Its totient is φ = 30286048.
The previous prime is 30286037. The next prime is 30286079. The reversal of 30286049 is 94068203.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 18861649 + 11424400 = 4343^2 + 3380^2 .
It is an emirp because it is prime and its reverse (94068203) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30286049 - 24 = 30286033 is a prime.
It is a super-3 number, since 3×302860493 (a number of 23 digits) contains 333 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30286079) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15143024 + 15143025.
It is an arithmetic number, because the mean of its divisors is an integer number (15143025).
Almost surely, 230286049 is an apocalyptic number.
It is an amenable number.
30286049 is a deficient number, since it is larger than the sum of its proper divisors (1).
30286049 is an equidigital number, since it uses as much as digits as its factorization.
30286049 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 10368, while the sum is 32.
The square root of 30286049 is about 5503.2762060431. The cubic root of 30286049 is about 311.7077068868.
The spelling of 30286049 in words is "thirty million, two hundred eighty-six thousand, forty-nine".
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