The number 55089
55089 is a composite number with 6 divisors. Its prime factorisation is × 6121. Divisors (6): 1, 3, 9, 6121, 18363, 55089.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
55089 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
55089 is composite. Its prime factorisation is
- 3
The divisors add up to 79586; without 55089 itself that is 24497, so 55089 is deficient (24497 is less than 55089). Euler's totient φ(55089) = 36720 numbers up to 55089 share no factor with it.
- 4
The digits of 55089 add up to 27, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 60 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55089 = 3^{2} \times 6121 \]55089 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 79586 |
| Euler totient φ(n) | 36720 |
| Square | 3034797921 |
| Cube | 167183982669969 |
| Square root | 234.710460 (= 3√6121) |
| Digit sum / digital root | 27 / 9 |
| Collatz steps to 1 | 60 |
| Scientific notation | 5.5089 × |
55089 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand and eighty-nine |
| Binary (base 2) | 1101011100110001 |
| Octal (base 8) | 153461 |
| Hexadecimal (base 16) | D731 |
| Base 3 | 2210120100 |
| As time | 55089 seconds = 15 h 18 min 9 s |
Is 55089 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 (55089 ÷ 3 = 18363) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | 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 6) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | Yes (55089 ÷ 9 = 6121) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55089 a prime number?
No. 55089 = × 6121, so it is divisible by 3.
What are the factors of 55089?
1, 3, 9, 6121, 18363, 55089.
What is 55089 in binary?
1101011100110001 (hexadecimal D731, octal 153461).
What is the square root of 55089?
About 234.7105, exactly 3√6121.
Is 55089 divisible by 3?
Yes. Its digits add up to 27, a multiple of 3.
What is special about the number 55089?
It is a composite number with 6 divisors.