The number 10489
10489 is a composite number with 4 divisors. Its prime factorisation is 17 × 617. Divisors (4): 1, 17, 617, 10489.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 10489: a semiprime: 17 × 617, the product of two primes.
- 2
10489 is composite. Its prime factorisation is
- 3
The divisors add up to 11124; without 10489 itself that is 635, so 10489 is deficient (635 is less than 10489). Euler's totient φ(10489) = 9856 numbers up to 10489 share no factor with it.
- 4
The digits of 10489 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 55 steps to reach 1.
LaTeX source of the formulas on this page
\[ 10489 = 17 \times 617 \]
10489 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 11124 |
| Euler totient φ(n) | 9856 |
| Square | 110019121 |
| Cube | 1153990560169 |
| Square root | 102.415819 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 55 |
| Scientific notation | 1.0489 × |
10489 in other forms
| Form | Value |
|---|---|
| In words | ten thousand four hundred and eighty-nine |
| Binary (base 2) | 10100011111001 |
| Octal (base 8) | 24371 |
| Hexadecimal (base 16) | 28F9 |
| Base 3 | 112101111 |
| As time | 10489 seconds = 2 h 54 min 49 s |
Is 10489 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 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 1) | 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 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 10489 a prime number?
No. 10489 = 17 × 617, so it is divisible by 17.
What are the factors of 10489?
1, 17, 617, 10489.
What is 10489 in binary?
10100011111001 (hexadecimal 28F9, octal 24371).
What is the square root of 10489?
About 102.4158.
Is 10489 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 10489?
10489 is a semiprime: 17 × 617, the product of two primes.