The number 17089
17089 is a composite number with 4 divisors. Its prime factorisation is 23 × 743. Divisors (4): 1, 23, 743, 17089.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 17089: a semiprime: 23 × 743, the product of two primes.
- 2
17089 is composite. Its prime factorisation is
- 3
The divisors add up to 17856; without 17089 itself that is 767, so 17089 is deficient (767 is less than 17089). Euler's totient φ(17089) = 16324 numbers up to 17089 share no factor with it.
- 4
The digits of 17089 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 66 steps to reach 1.
LaTeX source of the formulas on this page
\[ 17089 = 23 \times 743 \]
17089 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 17856 |
| Euler totient φ(n) | 16324 |
| Square | 292033921 |
| Cube | 4990567675969 |
| Square root | 130.724902 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 66 |
| Scientific notation | 1.7089 × |
17089 in other forms
| Form | Value |
|---|---|
| In words | seventeen thousand and eighty-nine |
| Binary (base 2) | 100001011000001 |
| Octal (base 8) | 41301 |
| Hexadecimal (base 16) | 42C1 |
| Base 3 | 212102221 |
| As time | 17089 seconds = 4 h 44 min 49 s |
Is 17089 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 6) | 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 17089 a prime number?
No. 17089 = 23 × 743, so it is divisible by 23.
What are the factors of 17089?
1, 23, 743, 17089.
What is 17089 in binary?
100001011000001 (hexadecimal 42C1, octal 41301).
What is the square root of 17089?
About 130.7249.
Is 17089 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 17089?
17089 is a semiprime: 23 × 743, the product of two primes.