The number 42482
42482 is a composite number with 8 divisors. Its prime factorisation is 2 × 11 × 1931. Divisors (8): 1, 2, 11, 22, 1931, 3862, 21241, 42482.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42482 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42482 is composite. Its prime factorisation is
- 3
The divisors add up to 69552; without 42482 itself that is 27070, so 42482 is deficient (27070 is less than 42482). Euler's totient φ(42482) = 19300 numbers up to 42482 share no factor with it.
- 4
The digits of 42482 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 57 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42482 = 2 \times 11 \times 1931 \]
42482 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 69552 |
| Euler totient φ(n) | 19300 |
| Square | 1804720324 |
| Cube | 76668128804168 |
| Square root | 206.111620 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 57 |
| Scientific notation | 4.2482 × |
42482 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand four hundred and eighty-two |
| Binary (base 2) | 1010010111110010 |
| Octal (base 8) | 122762 |
| Hexadecimal (base 16) | A5F2 |
| Base 3 | 2011021102 |
| As time | 42482 seconds = 11 h 48 min 2 s |
Is 42482 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42482 ÷ 2 = 21241) | 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 2) | 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 | Yes (42482 ÷ 11 = 3862) | 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 42482 a prime number?
No. 42482 = 2 × 11 × 1931, so it is divisible by 2.
What are the factors of 42482?
1, 2, 11, 22, 1931, 3862, 21241, 42482.
What is 42482 in binary?
1010010111110010 (hexadecimal A5F2, octal 122762).
What is the square root of 42482?
About 206.1116.
Is 42482 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 42482?
It is a composite number with 8 divisors.