| Base | Representation |
|---|---|
| bin | 11010100110010… |
| … | …11010110100000 |
| 3 | 120112212020020121 |
| 4 | 31103023112200 |
| 5 | 424110143130 |
| 6 | 34050250024 |
| 7 | 5346403546 |
| oct | 1523132640 |
| 9 | 515766217 |
| 10 | 223131040 |
| 11 | 104a51720 |
| 12 | 62886914 |
| 13 | 372c5902 |
| 14 | 218c3d96 |
| 15 | 148c7d7a |
| hex | d4cb5a0 |
223131040 has 96 divisors (see below), whose sum is σ = 581442624. Its totient is φ = 80240640.
The previous prime is 223131037. The next prime is 223131047. The reversal of 223131040 is 40131322.
It is a happy number.
It is a super-3 number, since 3×2231310403 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is not an unprimeable number, because it can be changed into a prime (223131047) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170067 + ... + 171373.
It is an arithmetic number, because the mean of its divisors is an integer number (6056694).
Almost surely, 2223131040 is an apocalyptic number.
223131040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 223131040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290721312).
223131040 is an abundant number, since it is smaller than the sum of its proper divisors (358311584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223131040 is a wasteful number, since it uses less digits than its factorization.
223131040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1430 (or 1422 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 223131040 is about 14937.5714224234. The cubic root of 223131040 is about 606.5314569398.
Adding to 223131040 its reverse (40131322), we get a palindrome (263262362).
The spelling of 223131040 in words is "two hundred twenty-three million, one hundred thirty-one thousand, forty".
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