Base | Representation |
---|---|
bin | 11001010011111… |
… | …10011000011101 |
3 | 112210112111000120 |
4 | 30221332120131 |
5 | 413324030023 |
6 | 33022545153 |
7 | 5155526640 |
oct | 1451763035 |
9 | 483474016 |
10 | 212330013 |
11 | a9944755 |
12 | 5b1381b9 |
13 | 34cb357c |
14 | 202b1a57 |
15 | 139928e3 |
hex | ca7e61d |
212330013 has 16 divisors (see below), whose sum is σ = 332296320. Its totient is φ = 118051776.
The previous prime is 212330003. The next prime is 212330033. The reversal of 212330013 is 310033212.
It is not a de Polignac number, because 212330013 - 210 = 212328989 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 212329974 and 212330001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212330003) 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, 135858 + ... + 137411.
It is an arithmetic number, because the mean of its divisors is an integer number (20768520).
Almost surely, 2212330013 is an apocalyptic number.
It is an amenable number.
212330013 is a deficient number, since it is larger than the sum of its proper divisors (119966307).
212330013 is a wasteful number, since it uses less digits than its factorization.
212330013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 273316.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 212330013 is about 14571.5480646361. The cubic root of 212330013 is about 596.5824345929.
Adding to 212330013 its reverse (310033212), we get a palindrome (522363225).
The spelling of 212330013 in words is "two hundred twelve million, three hundred thirty thousand, thirteen".
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