The number 42711
42711 is a composite number with 8 divisors. Its prime factorisation is 3 × 23 × 619. Divisors (8): 1, 3, 23, 69, 619, 1857, 14237, 42711.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42711 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42711 is composite. Its prime factorisation is
- 3
The divisors add up to 59520; without 42711 itself that is 16809, so 42711 is deficient (16809 is less than 42711). Euler's totient φ(42711) = 27192 numbers up to 42711 share no factor with it.
- 4
The digits of 42711 add up to 15, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 49 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42711 = 3 \times 23 \times 619 \]
42711 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 59520 |
| Euler totient φ(n) | 27192 |
| Square | 1824229521 |
| Cube | 77914667071431 |
| Square root | 206.666398 |
| Digit sum / digital root | 15 / 6 |
| Collatz steps to 1 | 49 |
| Scientific notation | 4.2711 × |
42711 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand seven hundred and eleven |
| Binary (base 2) | 1010011011010111 |
| Octal (base 8) | 123327 |
| Hexadecimal (base 16) | A6D7 |
| Base 3 | 2011120220 |
| As time | 42711 seconds = 11 h 51 min 51 s |
Is 42711 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 | Yes (42711 ÷ 3 = 14237) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 1) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | 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 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 42711 a prime number?
No. 42711 = 3 × 23 × 619, so it is divisible by 3.
What are the factors of 42711?
1, 3, 23, 69, 619, 1857, 14237, 42711.
What is 42711 in binary?
1010011011010111 (hexadecimal A6D7, octal 123327).
What is the square root of 42711?
About 206.6664.
Is 42711 divisible by 3?
Yes. Its digits add up to 15, a multiple of 3.
What is special about the number 42711?
It is a composite number with 8 divisors.