The number 27163
27163 is a composite number with 4 divisors. Its prime factorisation is 23 × 1181. Divisors (4): 1, 23, 1181, 27163.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 27163: a semiprime: 23 × 1181, the product of two primes.
- 2
27163 is composite. Its prime factorisation is
- 3
The divisors add up to 28368; without 27163 itself that is 1205, so 27163 is deficient (1205 is less than 27163). Euler's totient φ(27163) = 25960 numbers up to 27163 share no factor with it.
- 4
The digits of 27163 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 38 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27163 = 23 \times 1181 \]
27163 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 28368 |
| Euler totient φ(n) | 25960 |
| Square | 737828569 |
| Cube | 20041637419747 |
| Square root | 164.812014 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 38 |
| Scientific notation | 2.7163 × |
27163 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand one hundred and sixty-three |
| Binary (base 2) | 110101000011011 |
| Octal (base 8) | 65033 |
| Hexadecimal (base 16) | 6A1B |
| Base 3 | 1101021001 |
| As time | 27163 seconds = 7 h 32 min 43 s |
Is 27163 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 | No (remainder 3) | 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 3) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | 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 27163 a prime number?
No. 27163 = 23 × 1181, so it is divisible by 23.
What are the factors of 27163?
1, 23, 1181, 27163.
What is 27163 in binary?
110101000011011 (hexadecimal 6A1B, octal 65033).
What is the square root of 27163?
About 164.8120.
Is 27163 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 27163?
27163 is a semiprime: 23 × 1181, the product of two primes.