The number 49239
49239 is a composite number with 6 divisors. Its prime factorisation is × 5471. Divisors (6): 1, 3, 9, 5471, 16413, 49239.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
49239 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
49239 is composite. Its prime factorisation is
- 3
The divisors add up to 71136; without 49239 itself that is 21897, so 49239 is deficient (21897 is less than 49239). Euler's totient φ(49239) = 32820 numbers up to 49239 share no factor with it.
- 4
The digits of 49239 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 96 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49239 = 3^{2} \times 5471 \]49239 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 71136 |
| Euler totient φ(n) | 32820 |
| Square | 2424479121 |
| Cube | 119378927438919 |
| Square root | 221.898626 (= 3√5471) |
| Digit sum / digital root | 27 / 9 |
| Collatz steps to 1 | 96 |
| Scientific notation | 4.9239 × |
49239 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand two hundred and thirty-nine |
| Binary (base 2) | 1100000001010111 |
| Octal (base 8) | 140127 |
| Hexadecimal (base 16) | C057 |
| Base 3 | 2111112200 |
| As time | 49239 seconds = 13 h 40 min 39 s |
Is 49239 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 (49239 ÷ 3 = 16413) | 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 1) | 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 (49239 ÷ 9 = 5471) | 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 49239 a prime number?
No. 49239 = × 5471, so it is divisible by 3.
What are the factors of 49239?
1, 3, 9, 5471, 16413, 49239.
What is 49239 in binary?
1100000001010111 (hexadecimal C057, octal 140127).
What is the square root of 49239?
About 221.8986, exactly 3√5471.
Is 49239 divisible by 3?
Yes. Its digits add up to 27, a multiple of 3.
What is special about the number 49239?
It is a composite number with 6 divisors.