The number 42682
42682 is a composite number with 4 divisors. Its prime factorisation is 2 × 21341. Divisors (4): 1, 2, 21341, 42682.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 42682: a semiprime: 2 × 21341, the product of two primes.
- 2
42682 is composite. Its prime factorisation is
- 3
The divisors add up to 64026; without 42682 itself that is 21344, so 42682 is deficient (21344 is less than 42682). Euler's totient φ(42682) = 21340 numbers up to 42682 share no factor with it.
- 4
The digits of 42682 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 49 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42682 = 2 \times 21341 \]
42682 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 64026 |
| Euler totient φ(n) | 21340 |
| Square | 1821753124 |
| Cube | 77756066838568 |
| Square root | 206.596225 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 49 |
| Scientific notation | 4.2682 × |
42682 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand six hundred and eighty-two |
| Binary (base 2) | 1010011010111010 |
| Octal (base 8) | 123272 |
| Hexadecimal (base 16) | A6BA |
| Base 3 | 2011112211 |
| As time | 42682 seconds = 11 h 51 min 22 s |
Is 42682 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42682 ÷ 2 = 21341) | 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 | No (remainder 2) | 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 3) | 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 4) | 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 2) | 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 42682 a prime number?
No. 42682 = 2 × 21341, so it is divisible by 2.
What are the factors of 42682?
1, 2, 21341, 42682.
What is 42682 in binary?
1010011010111010 (hexadecimal A6BA, octal 123272).
What is the square root of 42682?
About 206.5962.
Is 42682 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 42682?
42682 is a semiprime: 2 × 21341, the product of two primes.