The number 27169
27169 is a composite number with 4 divisors. Its prime factorisation is 101 × 269. Divisors (4): 1, 101, 269, 27169.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 27169: a semiprime: 101 × 269, the product of two primes.
- 2
27169 is composite. Its prime factorisation is
- 3
The divisors add up to 27540; without 27169 itself that is 371, so 27169 is deficient (371 is less than 27169). Euler's totient φ(27169) = 26800 numbers up to 27169 share no factor with it.
- 4
The digits of 27169 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 38 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27169 = 101 \times 269 \]
27169 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 27540 |
| Euler totient φ(n) | 26800 |
| Square | 738154561 |
| Cube | 20054921267809 |
| Square root | 164.830216 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 38 |
| Scientific notation | 2.7169 × |
27169 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand one hundred and sixty-nine |
| Binary (base 2) | 110101000100001 |
| Octal (base 8) | 65041 |
| Hexadecimal (base 16) | 6A21 |
| Base 3 | 1101021021 |
| As time | 27169 seconds = 7 h 32 min 49 s |
Is 27169 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 1) | 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 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | 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 7) | 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 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 27169 a prime number?
No. 27169 = 101 × 269, so it is divisible by 101.
What are the factors of 27169?
1, 101, 269, 27169.
What is 27169 in binary?
110101000100001 (hexadecimal 6A21, octal 65041).
What is the square root of 27169?
About 164.8302.
Is 27169 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 27169?
27169 is a semiprime: 101 × 269, the product of two primes.