Base | Representation |
---|---|
bin | 11001011011010… |
… | …00110001100101 |
3 | 112212100020222210 |
4 | 30231220301211 |
5 | 414100240320 |
6 | 33055314033 |
7 | 5166635661 |
oct | 1455506145 |
9 | 485306883 |
10 | 213290085 |
11 | aa43aaa8 |
12 | 5b51b919 |
13 | 3525b568 |
14 | 204818a1 |
15 | 13ad20e0 |
hex | cb68c65 |
213290085 has 8 divisors (see below), whose sum is σ = 341264160. Its totient is φ = 113754704.
The previous prime is 213290081. The next prime is 213290093. The reversal of 213290085 is 580092312.
It is a happy number.
213290085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 213290085 - 22 = 213290081 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213290081) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7109655 + ... + 7109684.
It is an arithmetic number, because the mean of its divisors is an integer number (42658020).
Almost surely, 2213290085 is an apocalyptic number.
It is an amenable number.
213290085 is a deficient number, since it is larger than the sum of its proper divisors (127974075).
213290085 is a wasteful number, since it uses less digits than its factorization.
213290085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14219347.
The product of its (nonzero) digits is 4320, while the sum is 30.
The square root of 213290085 is about 14604.4542862786. The cubic root of 213290085 is about 597.4802523775.
The spelling of 213290085 in words is "two hundred thirteen million, two hundred ninety thousand, eighty-five".
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