The number 482
482 is a composite number with 4 divisors. Its prime factorisation is 2 × 241. Divisors (4): 1, 2, 241, 482.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 482: a semiprime: 2 × 241, the product of two primes.
- 2
482 is composite. Its prime factorisation is
- 3
The divisors add up to 726; without 482 itself that is 244, so 482 is deficient (244 is less than 482). Euler's totient φ(482) = 240 numbers up to 482 share no factor with it.
- 4
The digits of 482 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 22 steps to reach 1.
LaTeX source of the formulas on this page
\[ 482 = 2 \times 241 \]
482 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 726 |
| Euler totient φ(n) | 240 |
| Square | 232324 |
| Cube | 111980168 |
| Square root | 21.954498 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 22 |
| Scientific notation | 4.82 × |
482 in other forms
| Form | Value |
|---|---|
| In words | four hundred and eighty-two |
| Roman numerals | CDLXXXII |
| Binary (base 2) | 111100010 |
| Octal (base 8) | 742 |
| Hexadecimal (base 16) | 1E2 |
| Base 3 | 122212 |
| As time | 482 seconds = 8 min 2 s |
Is 482 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (482 ÷ 2 = 241) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | 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 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 5) | 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 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 482 a prime number?
No. 482 = 2 × 241, so it is divisible by 2.
What are the factors of 482?
1, 2, 241, 482.
What is 482 in binary?
111100010 (hexadecimal 1E2, octal 742).
What is the square root of 482?
About 21.9545.
What is 482 in Roman numerals?
CDLXXXII.
Is 482 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 482?
482 is a semiprime: 2 × 241, the product of two primes.