The number 56771
56771 is a composite number with 8 divisors. Its prime factorisation is 11 × 13 × 397. Divisors (8): 1, 11, 13, 143, 397, 4367, 5161, 56771.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
56771 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
56771 is composite. Its prime factorisation is
- 3
The divisors add up to 66864; without 56771 itself that is 10093, so 56771 is deficient (10093 is less than 56771). Euler's totient φ(56771) = 47520 numbers up to 56771 share no factor with it.
- 4
The digits of 56771 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 60 steps to reach 1.
LaTeX source of the formulas on this page
\[ 56771 = 11 \times 13 \times 397 \]
56771 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 66864 |
| Euler totient φ(n) | 47520 |
| Square | 3222946441 |
| Cube | 182969892402011 |
| Square root | 238.266657 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 60 |
| Scientific notation | 5.6771 × |
56771 in other forms
| Form | Value |
|---|---|
| In words | fifty-six thousand seven hundred and seventy-one |
| Binary (base 2) | 1101110111000011 |
| Octal (base 8) | 156703 |
| Hexadecimal (base 16) | DDC3 |
| Base 3 | 2212212122 |
| As time | 56771 seconds = 15 h 46 min 11 s |
Is 56771 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 | No (remainder 2) | 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 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | 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 | Yes (56771 ÷ 11 = 5161) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 56771 a prime number?
No. 56771 = 11 × 13 × 397, so it is divisible by 11.
What are the factors of 56771?
1, 11, 13, 143, 397, 4367, 5161, 56771.
What is 56771 in binary?
1101110111000011 (hexadecimal DDC3, octal 156703).
What is the square root of 56771?
About 238.2667.
Is 56771 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 56771?
It is a composite number with 8 divisors.