The number 27722
27722 is a composite number with 8 divisors. Its prime factorisation is 2 × 83 × 167. Divisors (8): 1, 2, 83, 166, 167, 334, 13861, 27722.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
27722 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
27722 is composite. Its prime factorisation is
- 3
The divisors add up to 42336; without 27722 itself that is 14614, so 27722 is deficient (14614 is less than 27722). Euler's totient φ(27722) = 13612 numbers up to 27722 share no factor with it.
- 4
The digits of 27722 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 152 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27722 = 2 \times 83 \times 167 \]
27722 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 42336 |
| Euler totient φ(n) | 13612 |
| Square | 768509284 |
| Cube | 21304614371048 |
| Square root | 166.499249 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 152 |
| Scientific notation | 2.7722 × |
27722 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand seven hundred and twenty-two |
| Binary (base 2) | 110110001001010 |
| Octal (base 8) | 66112 |
| Hexadecimal (base 16) | 6C4A |
| Base 3 | 1102000202 |
| As time | 27722 seconds = 7 h 42 min 2 s |
Is 27722 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (27722 ÷ 2 = 13861) | 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 2) | 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 | No (remainder 2) | 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 27722 a prime number?
No. 27722 = 2 × 83 × 167, so it is divisible by 2.
What are the factors of 27722?
1, 2, 83, 166, 167, 334, 13861, 27722.
What is 27722 in binary?
110110001001010 (hexadecimal 6C4A, octal 66112).
What is the square root of 27722?
About 166.4992.
Is 27722 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 27722?
It is a composite number with 8 divisors.