Base | Representation |
---|---|
bin | 111001111000… |
… | …0011110101101 |
3 | 2010002200200211 |
4 | 1303300132231 |
5 | 30232021013 |
6 | 3002222421 |
7 | 515633530 |
oct | 163603655 |
9 | 63080624 |
10 | 30345133 |
11 | 16146825 |
12 | a1b4a11 |
13 | 6396100 |
14 | 405ca17 |
15 | 29e623d |
hex | 1cf07ad |
30345133 has 24 divisors (see below), whose sum is σ = 38052288. Its totient is φ = 23692032.
The previous prime is 30345103. The next prime is 30345149. The reversal of 30345133 is 33154303.
It is not a de Polignac number, because 30345133 - 25 = 30345101 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30345103) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133566 + ... + 133792.
It is an arithmetic number, because the mean of its divisors is an integer number (1585512).
Almost surely, 230345133 is an apocalyptic number.
It is an amenable number.
30345133 is a deficient number, since it is larger than the sum of its proper divisors (7707155).
30345133 is a wasteful number, since it uses less digits than its factorization.
30345133 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 373 (or 360 counting only the distinct ones).
The product of its (nonzero) digits is 1620, while the sum is 22.
The square root of 30345133 is about 5508.6416656014. The cubic root of 30345133 is about 311.9102751253.
Adding to 30345133 its reverse (33154303), we get a palindrome (63499436).
The spelling of 30345133 in words is "thirty million, three hundred forty-five thousand, one hundred thirty-three".
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