| Base | Representation |
|---|---|
| bin | 11010100111110… |
| … | …01100101111000 |
| 3 | 120120012212001102 |
| 4 | 31103321211320 |
| 5 | 424132223230 |
| 6 | 34054310532 |
| 7 | 5351123000 |
| oct | 1523714570 |
| 9 | 516185042 |
| 10 | 223320440 |
| 11 | 105070a52 |
| 12 | 62958448 |
| 13 | 37360b95 |
| 14 | 21933000 |
| 15 | 14914045 |
| hex | d4f9978 |
223320440 has 128 divisors (see below), whose sum is σ = 601776000. Its totient is φ = 74511360.
The previous prime is 223320437. The next prime is 223320443. The reversal of 223320440 is 44023322.
223320440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (223320437) and next prime (223320443).
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223320443) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562322 + ... + 562718.
It is an arithmetic number, because the mean of its divisors is an integer number (4701375).
Almost surely, 2223320440 is an apocalyptic number.
223320440 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 223320440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300888000).
223320440 is an abundant number, since it is smaller than the sum of its proper divisors (378455560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223320440 is a wasteful number, since it uses less digits than its factorization.
223320440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 470 (or 452 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 20.
The square root of 223320440 is about 14943.9097963016. The cubic root of 223320440 is about 606.7030221474.
Adding to 223320440 its reverse (44023322), we get a palindrome (267343762).
The spelling of 223320440 in words is "two hundred twenty-three million, three hundred twenty thousand, four hundred forty".
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