Base | Representation |
---|---|
bin | 11010100110010… |
… | …11011001011110 |
3 | 120112212020111122 |
4 | 31103023121132 |
5 | 424110144410 |
6 | 34050250542 |
7 | 5346404240 |
oct | 1523133136 |
9 | 515766448 |
10 | 223131230 |
11 | 104a51883 |
12 | 62886a52 |
13 | 372c5a1a |
14 | 218c4090 |
15 | 148c7e55 |
hex | d4cb65e |
223131230 has 32 divisors (see below), whose sum is σ = 459648000. Its totient is φ = 76396320.
The previous prime is 223131187. The next prime is 223131247. The reversal of 223131230 is 32131322.
It is a super-3 number, since 3×2231312303 (a number of 26 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 223131199 and 223131208.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62021 + ... + 65519.
It is an arithmetic number, because the mean of its divisors is an integer number (14364000).
Almost surely, 2223131230 is an apocalyptic number.
223131230 is an abundant number, since it is smaller than the sum of its proper divisors (236516770).
223131230 is a wasteful number, since it uses less digits than its factorization.
223131230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4424.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 223131230 is about 14937.5777822243. The cubic root of 223131230 is about 606.5316290971.
Adding to 223131230 its reverse (32131322), we get a palindrome (255262552).
The spelling of 223131230 in words is "two hundred twenty-three million, one hundred thirty-one thousand, two hundred thirty".
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