Base | Representation |
---|---|
bin | 111010111011… |
… | …0001111100001 |
3 | 2011010112021010 |
4 | 1311312033201 |
5 | 30402034100 |
6 | 3022051133 |
7 | 523405062 |
oct | 165661741 |
9 | 64115233 |
10 | 30893025 |
11 | 16490429 |
12 | a419aa9 |
13 | 65285c7 |
14 | 4162569 |
15 | 2aa3750 |
hex | 1d763e1 |
30893025 has 24 divisors (see below), whose sum is σ = 53300160. Its totient is φ = 15759040.
The previous prime is 30893017. The next prime is 30893059. The reversal of 30893025 is 52039803.
It is a happy number.
It is not a de Polignac number, because 30893025 - 23 = 30893017 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30892983 and 30893001.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7230 + ... + 10679.
It is an arithmetic number, because the mean of its divisors is an integer number (2220840).
Almost surely, 230893025 is an apocalyptic number.
It is an amenable number.
30893025 is a deficient number, since it is larger than the sum of its proper divisors (22407135).
30893025 is a wasteful number, since it uses less digits than its factorization.
30893025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17945 (or 17940 counting only the distinct ones).
The product of its (nonzero) digits is 6480, while the sum is 30.
The square root of 30893025 is about 5558.1494222448. The cubic root of 30893025 is about 313.7763055779.
The spelling of 30893025 in words is "thirty million, eight hundred ninety-three thousand, twenty-five".
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