Base | Representation |
---|---|
bin | 11001001100111… |
… | …01110100110111 |
3 | 112201210202022120 |
4 | 30212131310313 |
5 | 413110111411 |
6 | 32551131023 |
7 | 5144646234 |
oct | 1446356467 |
9 | 481722276 |
10 | 211410231 |
11 | a93766aa |
12 | 5a973a73 |
13 | 34a50a16 |
14 | 2011278b |
15 | 13860106 |
hex | c99dd37 |
211410231 has 16 divisors (see below), whose sum is σ = 291008256. Its totient is φ = 136434816.
The previous prime is 211410223. The next prime is 211410247. The reversal of 211410231 is 132014112.
It is not a de Polignac number, because 211410231 - 23 = 211410223 is a prime.
It is a super-2 number, since 2×2114102312 = 89388571542946722, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 211410231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211410211) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7326 + ... + 21828.
It is an arithmetic number, because the mean of its divisors is an integer number (18188016).
Almost surely, 2211410231 is an apocalyptic number.
211410231 is a deficient number, since it is larger than the sum of its proper divisors (79598025).
211410231 is a wasteful number, since it uses less digits than its factorization.
211410231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14662.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 211410231 is about 14539.9529228949. The cubic root of 211410231 is about 595.7197522960.
Adding to 211410231 its reverse (132014112), we get a palindrome (343424343).
The spelling of 211410231 in words is "two hundred eleven million, four hundred ten thousand, two hundred thirty-one".
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