Base | Representation |
---|---|
bin | 111001111000… |
… | …0100001100001 |
3 | 2010002200221111 |
4 | 1303300201201 |
5 | 30232022223 |
6 | 3002223321 |
7 | 515634205 |
oct | 163604141 |
9 | 63080844 |
10 | 30345313 |
11 | 16146979 |
12 | a1b4b41 |
13 | 639620b |
14 | 405cb05 |
15 | 29e630d |
hex | 1cf0861 |
30345313 has 2 divisors, whose sum is σ = 30345314. Its totient is φ = 30345312.
The previous prime is 30345269. The next prime is 30345317. The reversal of 30345313 is 31354303.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 30107169 + 238144 = 5487^2 + 488^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30345313 is a prime.
It is not a weakly prime, because it can be changed into another prime (30345317) 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, 15172656 + 15172657.
It is an arithmetic number, because the mean of its divisors is an integer number (15172657).
Almost surely, 230345313 is an apocalyptic number.
It is an amenable number.
30345313 is a deficient number, since it is larger than the sum of its proper divisors (1).
30345313 is an equidigital number, since it uses as much as digits as its factorization.
30345313 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1620, while the sum is 22.
The square root of 30345313 is about 5508.6580035431. The cubic root of 30345313 is about 311.9108918496.
Adding to 30345313 its reverse (31354303), we get a palindrome (61699616).
The spelling of 30345313 in words is "thirty million, three hundred forty-five thousand, three hundred thirteen".
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