Base | Representation |
---|---|
bin | 11010100101100… |
… | …01000001111111 |
3 | 120112122202100200 |
4 | 31102301001333 |
5 | 424043220411 |
6 | 34044054543 |
7 | 5345444334 |
oct | 1522610177 |
9 | 515582320 |
10 | 223023231 |
11 | 104988722 |
12 | 62834453 |
13 | 37288812 |
14 | 2189698b |
15 | 148a5e56 |
hex | d4b107f |
223023231 has 24 divisors (see below), whose sum is σ = 333758880. Its totient is φ = 143404800.
The previous prime is 223023223. The next prime is 223023247. The reversal of 223023231 is 132320322.
It is a happy number.
It is not a de Polignac number, because 223023231 - 23 = 223023223 is a prime.
It is a super-2 number, since 2×2230232312 = 99478723131358722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223023271) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29446 + ... + 36236.
It is an arithmetic number, because the mean of its divisors is an integer number (13906620).
Almost surely, 2223023231 is an apocalyptic number.
223023231 is a deficient number, since it is larger than the sum of its proper divisors (110735649).
223023231 is a wasteful number, since it uses less digits than its factorization.
223023231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6927 (or 6924 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
The square root of 223023231 is about 14933.9623342233. The cubic root of 223023231 is about 606.4337563778.
Adding to 223023231 its reverse (132320322), we get a palindrome (355343553).
The spelling of 223023231 in words is "two hundred twenty-three million, twenty-three thousand, two hundred thirty-one".
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