The number 29439
29439 is a composite number with 6 divisors. Its prime factorisation is × 3271. Divisors (6): 1, 3, 9, 3271, 9813, 29439.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
29439 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
29439 is composite. Its prime factorisation is
- 3
The divisors add up to 42536; without 29439 itself that is 13097, so 29439 is deficient (13097 is less than 29439). Euler's totient φ(29439) = 19620 numbers up to 29439 share no factor with it.
- 4
The digits of 29439 add up to 27, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 103 steps to reach 1.
LaTeX source of the formulas on this page
\[ 29439 = 3^{2} \times 3271 \]29439 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 42536 |
| Euler totient φ(n) | 19620 |
| Square | 866654721 |
| Cube | 25513448331519 |
| Square root | 171.577971 (= 3√3271) |
| Digit sum / digital root | 27 / 9 |
| Collatz steps to 1 | 103 |
| Scientific notation | 2.9439 × |
29439 in other forms
| Form | Value |
|---|---|
| In words | twenty-nine thousand four hundred and thirty-nine |
| Binary (base 2) | 111001011111111 |
| Octal (base 8) | 71377 |
| Hexadecimal (base 16) | 72FF |
| Base 3 | 1111101100 |
| As time | 29439 seconds = 8 h 10 min 39 s |
Is 29439 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 | Yes (29439 ÷ 3 = 9813) | 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 3) | 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 | Yes (29439 ÷ 9 = 3271) | 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 | No (remainder 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 29439 a prime number?
No. 29439 = × 3271, so it is divisible by 3.
What are the factors of 29439?
1, 3, 9, 3271, 9813, 29439.
What is 29439 in binary?
111001011111111 (hexadecimal 72FF, octal 71377).
What is the square root of 29439?
About 171.5780, exactly 3√3271.
Is 29439 divisible by 3?
Yes. Its digits add up to 27, a multiple of 3.
What is special about the number 29439?
It is a composite number with 6 divisors.