Base | Representation |
---|---|
bin | 11010101000101… |
… | …00101000111110 |
3 | 120120102111000202 |
4 | 31110110220332 |
5 | 424144244410 |
6 | 34100523502 |
7 | 5352064001 |
oct | 1524245076 |
9 | 516374022 |
10 | 223431230 |
11 | 105137210 |
12 | 629b0592 |
13 | 3739c439 |
14 | 21961538 |
15 | 14936ca5 |
hex | d514a3e |
223431230 has 64 divisors (see below), whose sum is σ = 451008000. Its totient is φ = 79009920.
The previous prime is 223431191. The next prime is 223431233. The reversal of 223431230 is 32134322.
223431230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223431233) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1122671 + ... + 1122869.
It is an arithmetic number, because the mean of its divisors is an integer number (7047000).
Almost surely, 2223431230 is an apocalyptic number.
223431230 is an abundant number, since it is smaller than the sum of its proper divisors (227576770).
223431230 is a wasteful number, since it uses less digits than its factorization.
223431230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 449.
The product of its (nonzero) digits is 864, while the sum is 20.
The square root of 223431230 is about 14947.6161979093. The cubic root of 223431230 is about 606.8033346780.
Adding to 223431230 its reverse (32134322), we get a palindrome (255565552).
The spelling of 223431230 in words is "two hundred twenty-three million, four hundred thirty-one thousand, two hundred thirty".
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