The number 24550
24550 is a composite number with 12 divisors. Its prime factorisation is 2 × × 491. Divisors (12): 1, 2, 5, 10, 25, 50, 491, 982, 2455, 4910, 12275, 24550.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24550: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
24550 is composite. Its prime factorisation is
- 3
The divisors add up to 45756; without 24550 itself that is 21206, so 24550 is deficient (21206 is less than 24550). Euler's totient φ(24550) = 9800 numbers up to 24550 share no factor with it.
- 4
The digits of 24550 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 126 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24550 = 2 \times 5^{2} \times 491 \]24550 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 45756 |
| Euler totient φ(n) | 9800 |
| Square | 602702500 |
| Cube | 14796346375000 |
| Square root | 156.684396 (= 5√982) |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 126 |
| Scientific notation | 2.455 × |
24550 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand five hundred and fifty |
| Binary (base 2) | 101111111100110 |
| Octal (base 8) | 57746 |
| Hexadecimal (base 16) | 5FE6 |
| Base 3 | 1020200021 |
| As time | 24550 seconds = 6 h 49 min 10 s |
Is 24550 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (24550 ÷ 2 = 12275) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (24550 ÷ 5 = 4910) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (24550 ÷ 10 = 2455) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 24550 a prime number?
No. 24550 = 2 × × 491, so it is divisible by 2.
What are the factors of 24550?
1, 2, 5, 10, 25, 50, 491, 982, 2455, 4910, 12275, 24550.
What is 24550 in binary?
101111111100110 (hexadecimal 5FE6, octal 57746).
What is the square root of 24550?
About 156.6844, exactly 5√982.
Is 24550 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 24550?
24550 is a happy number: repeatedly adding the squares of its digits reaches 1.