Base | Representation |
---|---|
bin | 11001011010101… |
… | …01100001000011 |
3 | 112212012020210020 |
4 | 30231111201003 |
5 | 414040224303 |
6 | 33053504523 |
7 | 5166160002 |
oct | 1455254103 |
9 | 485166706 |
10 | 213211203 |
11 | aa396807 |
12 | 5b4a2143 |
13 | 3523169a |
14 | 20460c39 |
15 | 13ab8a53 |
hex | cb55843 |
213211203 has 8 divisors (see below), whose sum is σ = 284361408. Its totient is φ = 142100904.
The previous prime is 213211169. The next prime is 213211213. The reversal of 213211203 is 302112312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 213211203 - 26 = 213211139 is a prime.
It is not an unprimeable number, because it can be changed into a prime (213211213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6276 + ... + 21582.
It is an arithmetic number, because the mean of its divisors is an integer number (35545176).
Almost surely, 2213211203 is an apocalyptic number.
213211203 is a deficient number, since it is larger than the sum of its proper divisors (71150205).
213211203 is a wasteful number, since it uses less digits than its factorization.
213211203 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19953.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 213211203 is about 14601.7534221065. The cubic root of 213211203 is about 597.4065870551.
Adding to 213211203 its reverse (302112312), we get a palindrome (515323515).
The spelling of 213211203 in words is "two hundred thirteen million, two hundred eleven thousand, two hundred three".
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