Base | Representation |
---|---|
bin | 111010011000… |
… | …1101100000110 |
3 | 2010121021002022 |
4 | 1310301230012 |
5 | 30314042410 |
6 | 3012043142 |
7 | 521125325 |
oct | 164615406 |
9 | 63537068 |
10 | 30612230 |
11 | 16309470 |
12 | a3034b2 |
13 | 645a85c |
14 | 40cc0bc |
15 | 2a4a455 |
hex | 1d31b06 |
30612230 has 64 divisors (see below), whose sum is σ = 64350720. Its totient is φ = 10368000.
The previous prime is 30612229. The next prime is 30612247. The reversal of 30612230 is 3221603.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30612199 and 30612208.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202655 + ... + 202805.
It is an arithmetic number, because the mean of its divisors is an integer number (1005480).
Almost surely, 230612230 is an apocalyptic number.
30612230 is an abundant number, since it is smaller than the sum of its proper divisors (33738490).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30612230 is a wasteful number, since it uses less digits than its factorization.
30612230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 285.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 30612230 is about 5532.8320054019. The cubic root of 30612230 is about 312.8227449595.
Adding to 30612230 its reverse (3221603), we get a palindrome (33833833).
The spelling of 30612230 in words is "thirty million, six hundred twelve thousand, two hundred thirty".
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