Base | Representation |
---|---|
bin | 11010100110011… |
… | …10010101010100 |
3 | 120112212211222220 |
4 | 31103032111110 |
5 | 424111041002 |
6 | 34050422340 |
7 | 5346454263 |
oct | 1523162524 |
9 | 515784886 |
10 | 223143252 |
11 | 104a5a912 |
12 | 628919b0 |
13 | 372cb337 |
14 | 218c85da |
15 | 148cb7bc |
hex | d4ce554 |
223143252 has 24 divisors (see below), whose sum is σ = 520953216. Its totient is φ = 74340288.
The previous prime is 223143223. The next prime is 223143253. The reversal of 223143252 is 252341322.
223143252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-3 number, since 3×2231432523 (a number of 26 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223143253) 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, 24613 + ... + 32435.
It is an arithmetic number, because the mean of its divisors is an integer number (21706384).
Almost surely, 2223143252 is an apocalyptic number.
It is an amenable number.
223143252 is an abundant number, since it is smaller than the sum of its proper divisors (297809964).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223143252 is a wasteful number, since it uses less digits than its factorization.
223143252 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10207 (or 10205 counting only the distinct ones).
The product of its digits is 2880, while the sum is 24.
The square root of 223143252 is about 14937.9801847505. The cubic root of 223143252 is about 606.5425219280.
Adding to 223143252 its reverse (252341322), we get a palindrome (475484574).
The spelling of 223143252 in words is "two hundred twenty-three million, one hundred forty-three thousand, two hundred fifty-two".
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