The number 55822
55822 is a composite number with 16 divisors. Its prime factorisation is 2 × 13 × 19 × 113. Divisors (16): 1, 2, 13, 19, 26, 38, 113, 226, 247, 494, 1469, 2147, 2938, 4294, 27911, 55822.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55822 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55822 is composite. Its prime factorisation is
- 3
The divisors add up to 95760; without 55822 itself that is 39938, so 55822 is deficient (39938 is less than 55822). Euler's totient φ(55822) = 24192 numbers up to 55822 share no factor with it.
- 4
The digits of 55822 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 135 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55822 = 2 \times 13 \times 19 \times 113 \]
55822 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 95760 |
| Euler totient φ(n) | 24192 |
| Square | 3116095684 |
| Cube | 173946693272248 |
| Square root | 236.266798 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 135 |
| Scientific notation | 5.5822 × |
55822 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand eight hundred and twenty-two |
| Binary (base 2) | 1101101000001110 |
| Octal (base 8) | 155016 |
| Hexadecimal (base 16) | DA0E |
| Base 3 | 2211120111 |
| As time | 55822 seconds = 15 h 30 min 22 s |
Is 55822 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (55822 ÷ 2 = 27911) | 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 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 6) | 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 8) | 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 55822 a prime number?
No. 55822 = 2 × 13 × 19 × 113, so it is divisible by 2.
What are the factors of 55822?
1, 2, 13, 19, 26, 38, 113, 226, 247, 494, 1469, 2147, 2938, 4294, 27911, 55822.
What is 55822 in binary?
1101101000001110 (hexadecimal DA0E, octal 155016).
What is the square root of 55822?
About 236.2668.
Is 55822 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 55822?
It is a composite number with 16 divisors.