The number 24925
24925 is a composite number with 6 divisors. Its prime factorisation is Ć 997. Divisors (6): 1, 5, 25, 997, 4985, 24925.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24925: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
24925 is composite. Its prime factorisation is
- 3
The divisors add up to 30938; without 24925 itself that is 6013, so 24925 is deficient (6013 is less than 24925). Euler's totient Ļ(24925) = 19920 numbers up to 24925 share no factor with it.
- 4
The digits of 24925 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 64 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24925 = 5^{2} \times 997 \]24925 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 30938 |
| Euler totient Ļ(n) | 19920 |
| Square | 621255625 |
| Cube | 15484796453125 |
| Square root | 157.876534 (= 5ā997) |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 64 |
| Scientific notation | 2.4925 Ć |
24925 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand nine hundred and twenty-five |
| Binary (base 2) | 110000101011101 |
| Octal (base 8) | 60535 |
| Hexadecimal (base 16) | 615D |
| Base 3 | 1021012011 |
| As time | 24925 seconds = 6 h 55 min 25 s |
Is 24925 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 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (24925 Ć· 5 = 4985) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 24925 a prime number?
No. 24925 = Ć 997, so it is divisible by 5.
What are the factors of 24925?
1, 5, 25, 997, 4985, 24925.
What is 24925 in binary?
110000101011101 (hexadecimal 615D, octal 60535).
What is the square root of 24925?
About 157.8765, exactly 5ā997.
Is 24925 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 24925?
24925 is a happy number: repeatedly adding the squares of its digits reaches 1.