The number 55182
55182 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 17 × 541. Divisors (16): 1, 2, 3, 6, 17, 34, 51, 102, 541, 1082, 1623, 3246, 9197, 18394, 27591, 55182.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55182 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55182 is composite. Its prime factorisation is
- 3
The divisors add up to 117072; without 55182 itself that is 61890, so 55182 is abundant (61890 is more than 55182). Euler's totient φ(55182) = 17280 numbers up to 55182 share no factor with it.
- 4
The digits of 55182 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 91 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55182 = 2 \times 3 \times 17 \times 541 \]
55182 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 117072 |
| Euler totient φ(n) | 17280 |
| Square | 3045053124 |
| Cube | 168032121488568 |
| Square root | 234.908493 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 91 |
| Scientific notation | 5.5182 × |
55182 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand one hundred and eighty-two |
| Binary (base 2) | 1101011110001110 |
| Octal (base 8) | 153616 |
| Hexadecimal (base 16) | D78E |
| Base 3 | 2210200210 |
| As time | 55182 seconds = 15 h 19 min 42 s |
Is 55182 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (55182 ÷ 2 = 27591) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (55182 ÷ 3 = 18394) | 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 | Yes (55182 ÷ 6 = 9197) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | 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 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55182 a prime number?
No. 55182 = 2 × 3 × 17 × 541, so it is divisible by 2.
What are the factors of 55182?
1, 2, 3, 6, 17, 34, 51, 102, 541, 1082, 1623, 3246, 9197, 18394, 27591, 55182.
What is 55182 in binary?
1101011110001110 (hexadecimal D78E, octal 153616).
What is the square root of 55182?
About 234.9085.
Is 55182 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 55182?
It is a composite number with 16 divisors.