Base | Representation |
---|---|
bin | 11010100110001… |
… | …01000011001001 |
3 | 120112210220211111 |
4 | 31103011003021 |
5 | 424103331400 |
6 | 34045530321 |
7 | 5346235360 |
oct | 1523050311 |
9 | 515726744 |
10 | 223105225 |
11 | 104a34292 |
12 | 628739a1 |
13 | 372b6c35 |
14 | 218b87d7 |
15 | 148c03ba |
hex | d4c50c9 |
223105225 has 24 divisors (see below), whose sum is σ = 316908288. Its totient is φ = 152630400.
The previous prime is 223105219. The next prime is 223105237. The reversal of 223105225 is 522501322.
It is not a de Polignac number, because 223105225 - 225 = 189550793 is a prime.
It is a super-3 number, since 3×2231052253 (a number of 26 digits) contains 333 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 223105196 and 223105205.
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, 89952 + ... + 92398.
It is an arithmetic number, because the mean of its divisors is an integer number (13204512).
Almost surely, 2223105225 is an apocalyptic number.
223105225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
223105225 is a deficient number, since it is larger than the sum of its proper divisors (93803063).
223105225 is a wasteful number, since it uses less digits than its factorization.
223105225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2985 (or 2980 counting only the distinct ones).
The product of its (nonzero) digits is 1200, while the sum is 22.
The square root of 223105225 is about 14936.7073011424. The cubic root of 223105225 is about 606.5080652840.
Adding to 223105225 its reverse (522501322), we get a palindrome (745606547).
The spelling of 223105225 in words is "two hundred twenty-three million, one hundred five thousand, two hundred twenty-five".
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