Base | Representation |
---|---|
bin | 11001011010110… |
… | …10001010000100 |
3 | 112212020012212021 |
4 | 30231122022010 |
5 | 414041331322 |
6 | 33054132524 |
7 | 5166266266 |
oct | 1455321204 |
9 | 485205767 |
10 | 213230212 |
11 | aa3aa018 |
12 | 5b4b1144 |
13 | 3523a230 |
14 | 20467b36 |
15 | 13abe4c7 |
hex | cb5a284 |
213230212 has 12 divisors (see below), whose sum is σ = 401857036. Its totient is φ = 98413920.
The previous prime is 213230207. The next prime is 213230219. The reversal of 213230212 is 212032312.
It can be written as a sum of positive squares in 2 ways, for example, as 52041796 + 161188416 = 7214^2 + 12696^2 .
It is not an unprimeable number, because it can be changed into a prime (213230219) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2050239 + ... + 2050342.
Almost surely, 2213230212 is an apocalyptic number.
It is an amenable number.
213230212 is a deficient number, since it is larger than the sum of its proper divisors (188626824).
213230212 is a wasteful number, since it uses less digits than its factorization.
213230212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4100598 (or 4100596 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 213230212 is about 14602.4043225765. The cubic root of 213230212 is about 597.4243406005.
Adding to 213230212 its reverse (212032312), we get a palindrome (425262524).
The spelling of 213230212 in words is "two hundred thirteen million, two hundred thirty thousand, two hundred twelve".
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