The number 27290
27290 is a composite number with 8 divisors. Its prime factorisation is 2 × 5 × 2729. Divisors (8): 1, 2, 5, 10, 2729, 5458, 13645, 27290.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
27290 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
27290 is composite. Its prime factorisation is
- 3
The divisors add up to 49140; without 27290 itself that is 21850, so 27290 is deficient (21850 is less than 27290). Euler's totient φ(27290) = 10912 numbers up to 27290 share no factor with it.
- 4
The digits of 27290 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 139 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27290 = 2 \times 5 \times 2729 \]
27290 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 49140 |
| Euler totient φ(n) | 10912 |
| Square | 744744100 |
| Cube | 20324066489000 |
| Square root | 165.196852 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 139 |
| Scientific notation | 2.729 × |
27290 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand two hundred and ninety |
| Binary (base 2) | 110101010011010 |
| Octal (base 8) | 65232 |
| Hexadecimal (base 16) | 6A9A |
| Base 3 | 1101102202 |
| As time | 27290 seconds = 7 h 34 min 50 s |
Is 27290 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (27290 ÷ 2 = 13645) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (27290 ÷ 5 = 5458) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | 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 2) | 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 | Yes (27290 ÷ 10 = 2729) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 27290 a prime number?
No. 27290 = 2 × 5 × 2729, so it is divisible by 2.
What are the factors of 27290?
1, 2, 5, 10, 2729, 5458, 13645, 27290.
What is 27290 in binary?
110101010011010 (hexadecimal 6A9A, octal 65232).
What is the square root of 27290?
About 165.1969.
Is 27290 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 27290?
It is a composite number with 8 divisors.