Base | Representation |
---|---|
bin | 11001011001010… |
… | …01010101001111 |
3 | 112211212001112021 |
4 | 30230221111033 |
5 | 414013431343 |
6 | 33045551011 |
7 | 5164504240 |
oct | 1454512517 |
9 | 484761467 |
10 | 213030223 |
11 | aa28283a |
12 | 5b415467 |
13 | 3519a1b3 |
14 | 20414cc7 |
15 | 13a800ed |
hex | cb2954f |
213030223 has 8 divisors (see below), whose sum is σ = 256277120. Its totient is φ = 172986840.
The previous prime is 213030203. The next prime is 213030229. The reversal of 213030223 is 322030312.
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 213030223 - 213 = 213022031 is a prime.
It is a super-2 number, since 2×2130302232 = 90763751822859458, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 213030197 and 213030206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213030229) 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, 800733 + ... + 800998.
It is an arithmetic number, because the mean of its divisors is an integer number (32034640).
Almost surely, 2213030223 is an apocalyptic number.
213030223 is a deficient number, since it is larger than the sum of its proper divisors (43246897).
213030223 is a wasteful number, since it uses less digits than its factorization.
213030223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1601757.
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 213030223 is about 14595.5549055183. The cubic root of 213030223 is about 597.2375070560.
Adding to 213030223 its reverse (322030312), we get a palindrome (535060535).
The spelling of 213030223 in words is "two hundred thirteen million, thirty thousand, two hundred twenty-three".
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