Base | Representation |
---|---|
bin | 111001110110… |
… | …0110010011101 |
3 | 2010001220221211 |
4 | 1303230302131 |
5 | 30231030023 |
6 | 3002024421 |
7 | 515541460 |
oct | 163546235 |
9 | 63056854 |
10 | 30330013 |
11 | 1613642a |
12 | a1a8111 |
13 | 638c26c |
14 | 40572d7 |
15 | 29e1a0d |
hex | 1cecc9d |
30330013 has 16 divisors (see below), whose sum is σ = 35368960. Its totient is φ = 25474176.
The previous prime is 30329987. The next prime is 30330017. The reversal of 30330013 is 31003303.
It is not a de Polignac number, because 30330013 - 217 = 30198941 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30329975 and 30330002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30330017) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96745 + ... + 97057.
It is an arithmetic number, because the mean of its divisors is an integer number (2210560).
Almost surely, 230330013 is an apocalyptic number.
It is an amenable number.
30330013 is a deficient number, since it is larger than the sum of its proper divisors (5038947).
30330013 is a wasteful number, since it uses less digits than its factorization.
30330013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 556.
The product of its (nonzero) digits is 81, while the sum is 13.
The square root of 30330013 is about 5507.2691054642. The cubic root of 30330013 is about 311.8584615790.
Adding to 30330013 its reverse (31003303), we get a palindrome (61333316).
The spelling of 30330013 in words is "thirty million, three hundred thirty thousand, thirteen".
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