Base | Representation |
---|---|
bin | 111001110010… |
… | …1110001000101 |
3 | 2010000110111122 |
4 | 1303211301011 |
5 | 30224120003 |
6 | 3001243325 |
7 | 515361563 |
oct | 163456105 |
9 | 63013448 |
10 | 30301253 |
11 | 16116864 |
12 | a193545 |
13 | 637c148 |
14 | 404aa33 |
15 | 29d8238 |
hex | 1ce5c45 |
30301253 has 2 divisors, whose sum is σ = 30301254. Its totient is φ = 30301252.
The previous prime is 30301247. The next prime is 30301267. The reversal of 30301253 is 35210303.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 26388769 + 3912484 = 5137^2 + 1978^2 .
It is an emirp because it is prime and its reverse (35210303) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30301253 - 28 = 30300997 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30301273) 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, 15150626 + 15150627.
It is an arithmetic number, because the mean of its divisors is an integer number (15150627).
Almost surely, 230301253 is an apocalyptic number.
It is an amenable number.
30301253 is a deficient number, since it is larger than the sum of its proper divisors (1).
30301253 is an equidigital number, since it uses as much as digits as its factorization.
30301253 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 270, while the sum is 17.
The square root of 30301253 is about 5504.6573917002. The cubic root of 30301253 is about 311.7598586344.
Adding to 30301253 its reverse (35210303), we get a palindrome (65511556).
The spelling of 30301253 in words is "thirty million, three hundred one thousand, two hundred fifty-three".
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