The number 25482
25482 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 31 × 137. Divisors (16): 1, 2, 3, 6, 31, 62, 93, 137, 186, 274, 411, 822, 4247, 8494, 12741, 25482.
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How to work it out
- 1
25482 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
25482 is composite. Its prime factorisation is
- 3
The divisors add up to 52992; without 25482 itself that is 27510, so 25482 is abundant (27510 is more than 25482). Euler's totient φ(25482) = 8160 numbers up to 25482 share no factor with it.
- 4
The digits of 25482 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 33 steps to reach 1.
LaTeX source of the formulas on this page
\[ 25482 = 2 \times 3 \times 31 \times 137 \]
25482 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 52992 |
| Euler totient φ(n) | 8160 |
| Square | 649332324 |
| Cube | 16546286280168 |
| Square root | 159.630824 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 33 |
| Scientific notation | 2.5482 × |
25482 in other forms
| Form | Value |
|---|---|
| In words | twenty-five thousand four hundred and eighty-two |
| Binary (base 2) | 110001110001010 |
| Octal (base 8) | 61612 |
| Hexadecimal (base 16) | 638A |
| Base 3 | 1021221210 |
| As time | 25482 seconds = 7 h 4 min 42 s |
Is 25482 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (25482 ÷ 2 = 12741) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (25482 ÷ 3 = 8494) | 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 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | Yes (25482 ÷ 6 = 4247) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 25482 a prime number?
No. 25482 = 2 × 3 × 31 × 137, so it is divisible by 2.
What are the factors of 25482?
1, 2, 3, 6, 31, 62, 93, 137, 186, 274, 411, 822, 4247, 8494, 12741, 25482.
What is 25482 in binary?
110001110001010 (hexadecimal 638A, octal 61612).
What is the square root of 25482?
About 159.6308.
Is 25482 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 25482?
It is a composite number with 16 divisors.