The number 27149
27149 is a composite number with 4 divisors. Its prime factorisation is 17 × 1597. Divisors (4): 1, 17, 1597, 27149.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 27149: a semiprime: 17 × 1597, the product of two primes.
- 2
27149 is composite. Its prime factorisation is
- 3
The divisors add up to 28764; without 27149 itself that is 1615, so 27149 is deficient (1615 is less than 27149). Euler's totient φ(27149) = 25536 numbers up to 27149 share no factor with it.
- 4
The digits of 27149 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 46 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27149 = 17 \times 1597 \]
27149 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 28764 |
| Euler totient φ(n) | 25536 |
| Square | 737068201 |
| Cube | 20010664588949 |
| Square root | 164.769536 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 46 |
| Scientific notation | 2.7149 × |
27149 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand one hundred and forty-nine |
| Binary (base 2) | 110101000001101 |
| Octal (base 8) | 65015 |
| Hexadecimal (base 16) | 6A0D |
| Base 3 | 1101020112 |
| As time | 27149 seconds = 7 h 32 min 29 s |
Is 27149 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 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 5) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | 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 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 27149 a prime number?
No. 27149 = 17 × 1597, so it is divisible by 17.
What are the factors of 27149?
1, 17, 1597, 27149.
What is 27149 in binary?
110101000001101 (hexadecimal 6A0D, octal 65015).
What is the square root of 27149?
About 164.7695.
Is 27149 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 27149?
27149 is a semiprime: 17 × 1597, the product of two primes.