Base | Representation |
---|---|
bin | 11010100110011… |
… | …10101001010010 |
3 | 120112212220202020 |
4 | 31103032221102 |
5 | 424111111110 |
6 | 34050432310 |
7 | 5346461100 |
oct | 1523165122 |
9 | 515786666 |
10 | 223144530 |
11 | 104a60874 |
12 | 62892696 |
13 | 372cbaab |
14 | 218c8c70 |
15 | 148cbd70 |
hex | d4cea52 |
223144530 has 48 divisors (see below), whose sum is σ = 622987200. Its totient is φ = 51004128.
The previous prime is 223144529. The next prime is 223144543. The reversal of 223144530 is 35441322.
223144530 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 3×2231445303 (a number of 26 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 223144530.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74430 + ... + 77369.
It is an arithmetic number, because the mean of its divisors is an integer number (12978900).
Almost surely, 2223144530 is an apocalyptic number.
223144530 is an abundant number, since it is smaller than the sum of its proper divisors (399842670).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223144530 is a wasteful number, since it uses less digits than its factorization.
223144530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 151823 (or 151816 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 24.
The square root of 223144530 is about 14938.0229615569. The cubic root of 223144530 is about 606.5436798686.
Adding to 223144530 its reverse (35441322), we get a palindrome (258585852).
The spelling of 223144530 in words is "two hundred twenty-three million, one hundred forty-four thousand, five hundred thirty".
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