The number 43439
43439 is a composite number with 6 divisors. Its prime factorisation is Ć 359. Divisors (6): 1, 11, 121, 359, 3949, 43439.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
43439 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
43439 is composite. Its prime factorisation is
- 3
The divisors add up to 47880; without 43439 itself that is 4441, so 43439 is deficient (4441 is less than 43439). Euler's totient Ļ(43439) = 39380 numbers up to 43439 share no factor with it.
- 4
The digits of 43439 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 150 steps to reach 1.
LaTeX source of the formulas on this page
\[ 43439 = 11^{2} \times 359 \]43439 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 47880 |
| Euler totient Ļ(n) | 39380 |
| Square | 1886946721 |
| Cube | 81967078613519 |
| Square root | 208.420249 (= 11ā359) |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 150 |
| Scientific notation | 4.3439 Ć |
43439 in other forms
| Form | Value |
|---|---|
| In words | forty-three thousand four hundred and thirty-nine |
| Binary (base 2) | 1010100110101111 |
| Octal (base 8) | 124657 |
| Hexadecimal (base 16) | A9AF |
| Base 3 | 2012120212 |
| As time | 43439 seconds = 12 h 3 min 59 s |
Is 43439 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (43439 Ć· 11 = 3949) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 43439 a prime number?
No. 43439 = Ć 359, so it is divisible by 11.
What are the factors of 43439?
1, 11, 121, 359, 3949, 43439.
What is 43439 in binary?
1010100110101111 (hexadecimal A9AF, octal 124657).
What is the square root of 43439?
About 208.4202, exactly 11ā359.
Is 43439 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 43439?
It is a composite number with 6 divisors.