Base | Representation |
---|---|
bin | 11010100111000… |
… | …01100101111111 |
3 | 120120000212012210 |
4 | 31103201211333 |
5 | 424121102033 |
6 | 34052231503 |
7 | 5350233264 |
oct | 1523414577 |
9 | 516025183 |
10 | 223222143 |
11 | 105004111 |
12 | 6290b593 |
13 | 37328211 |
14 | 2190926b |
15 | 148e4d63 |
hex | d4e197f |
223222143 has 16 divisors (see below), whose sum is σ = 300395520. Its totient is φ = 147438144.
The previous prime is 223222141. The next prime is 223222151. The reversal of 223222143 is 341222322.
It is not a de Polignac number, because 223222143 - 21 = 223222141 is a prime.
It is a super-3 number, since 3×2232221433 (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 (223222141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233755 + ... + 234707.
It is an arithmetic number, because the mean of its divisors is an integer number (18774720).
Almost surely, 2223222143 is an apocalyptic number.
223222143 is a deficient number, since it is larger than the sum of its proper divisors (77173377).
223222143 is a wasteful number, since it uses less digits than its factorization.
223222143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1598.
The product of its digits is 1152, while the sum is 21.
The square root of 223222143 is about 14940.6205694409. The cubic root of 223222143 is about 606.6139933672.
Adding to 223222143 its reverse (341222322), we get a palindrome (564444465).
The spelling of 223222143 in words is "two hundred twenty-three million, two hundred twenty-two thousand, one hundred forty-three".
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