The number 27089
27089 is a composite number with 4 divisors. Its prime factorisation is 103 × 263. Divisors (4): 1, 103, 263, 27089.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 27089: a semiprime: 103 × 263, the product of two primes.
- 2
27089 is composite. Its prime factorisation is
- 3
The divisors add up to 27456; without 27089 itself that is 367, so 27089 is deficient (367 is less than 27089). Euler's totient φ(27089) = 26724 numbers up to 27089 share no factor with it.
- 4
The digits of 27089 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 183 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27089 = 103 \times 263 \]
27089 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 27456 |
| Euler totient φ(n) | 26724 |
| Square | 733813921 |
| Cube | 19878285305969 |
| Square root | 164.587363 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 183 |
| Scientific notation | 2.7089 × |
27089 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand and eighty-nine |
| Binary (base 2) | 110100111010001 |
| Octal (base 8) | 64721 |
| Hexadecimal (base 16) | 69D1 |
| Base 3 | 1101011022 |
| As time | 27089 seconds = 7 h 31 min 29 s |
Is 27089 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 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 5) | 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 | No (remainder 8) | 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 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 27089 a prime number?
No. 27089 = 103 × 263, so it is divisible by 103.
What are the factors of 27089?
1, 103, 263, 27089.
What is 27089 in binary?
110100111010001 (hexadecimal 69D1, octal 64721).
What is the square root of 27089?
About 164.5874.
Is 27089 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 27089?
27089 is a semiprime: 103 × 263, the product of two primes.