The number 27355
27355 is a composite number with 4 divisors. Its prime factorisation is 5 × 5471. Divisors (4): 1, 5, 5471, 27355.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 27355: a semiprime: 5 × 5471, the product of two primes.
- 2
27355 is composite. Its prime factorisation is
- 3
The divisors add up to 32832; without 27355 itself that is 5477, so 27355 is deficient (5477 is less than 27355). Euler's totient φ(27355) = 21880 numbers up to 27355 share no factor with it.
- 4
The digits of 27355 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 121 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27355 = 5 \times 5471 \]
27355 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 32832 |
| Euler totient φ(n) | 21880 |
| Square | 748296025 |
| Cube | 20469637763875 |
| Square root | 165.393470 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 121 |
| Scientific notation | 2.7355 × |
27355 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand three hundred and fifty-five |
| Binary (base 2) | 110101011011011 |
| Octal (base 8) | 65333 |
| Hexadecimal (base 16) | 6ADB |
| Base 3 | 1101112011 |
| As time | 27355 seconds = 7 h 35 min 55 s |
Is 27355 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (27355 ÷ 5 = 5471) | 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 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 5) | 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 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 27355 a prime number?
No. 27355 = 5 × 5471, so it is divisible by 5.
What are the factors of 27355?
1, 5, 5471, 27355.
What is 27355 in binary?
110101011011011 (hexadecimal 6ADB, octal 65333).
What is the square root of 27355?
About 165.3935.
Is 27355 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 27355?
27355 is a semiprime: 5 × 5471, the product of two primes.