The number 27047
27047 is a composite number with 8 divisors. Its prime factorisation is 17 × 37 × 43. Divisors (8): 1, 17, 37, 43, 629, 731, 1591, 27047.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
27047 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
27047 is composite. Its prime factorisation is
- 3
The divisors add up to 30096; without 27047 itself that is 3049, so 27047 is deficient (3049 is less than 27047). Euler's totient φ(27047) = 24192 numbers up to 27047 share no factor with it.
- 4
The digits of 27047 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 90 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27047 = 17 \times 37 \times 43 \]
27047 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 30096 |
| Euler totient φ(n) | 24192 |
| Square | 731540209 |
| Cube | 19785968032823 |
| Square root | 164.459722 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 90 |
| Scientific notation | 2.7047 × |
27047 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand and forty-seven |
| Binary (base 2) | 110100110100111 |
| Octal (base 8) | 64647 |
| Hexadecimal (base 16) | 69A7 |
| Base 3 | 1101002202 |
| As time | 27047 seconds = 7 h 30 min 47 s |
Is 27047 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 3) | 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 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 7) | 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 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 27047 a prime number?
No. 27047 = 17 × 37 × 43, so it is divisible by 17.
What are the factors of 27047?
1, 17, 37, 43, 629, 731, 1591, 27047.
What is 27047 in binary?
110100110100111 (hexadecimal 69A7, octal 64647).
What is the square root of 27047?
About 164.4597.
Is 27047 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 27047?
It is a composite number with 8 divisors.