Base | Representation |
---|---|
bin | 11001001001111… |
… | …10100110111111 |
3 | 112201001221022211 |
4 | 30210332212333 |
5 | 413010121343 |
6 | 32534521251 |
7 | 5141433211 |
oct | 1444764677 |
9 | 481057284 |
10 | 211020223 |
11 | a912a687 |
12 | 5a806227 |
13 | 3494534b |
14 | 200505b1 |
15 | 137d479d |
hex | c93e9bf |
211020223 has 8 divisors (see below), whose sum is σ = 212170608. Its totient is φ = 209873664.
The previous prime is 211020163. The next prime is 211020233. The reversal of 211020223 is 322020112.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-211020223 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211020233) 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, 238540 + ... + 239422.
It is an arithmetic number, because the mean of its divisors is an integer number (26521326).
Almost surely, 2211020223 is an apocalyptic number.
211020223 is a deficient number, since it is larger than the sum of its proper divisors (1150385).
211020223 is an equidigital number, since it uses as much as digits as its factorization.
211020223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1913.
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 211020223 is about 14526.5351340228. The cubic root of 211020223 is about 595.3532003637.
Adding to 211020223 its reverse (322020112), we get a palindrome (533040335).
The spelling of 211020223 in words is "two hundred eleven million, twenty thousand, two hundred twenty-three".
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