The number 11441
11441 is a composite number with 4 divisors. Its prime factorisation is 17 × 673. Divisors (4): 1, 17, 673, 11441.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 11441: a semiprime: 17 × 673, the product of two primes.
- 2
11441 is composite. Its prime factorisation is
- 3
The divisors add up to 12132; without 11441 itself that is 691, so 11441 is deficient (691 is less than 11441). Euler's totient φ(11441) = 10752 numbers up to 11441 share no factor with it.
- 4
The digits of 11441 add up to 11, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 81 steps to reach 1.
LaTeX source of the formulas on this page
\[ 11441 = 17 \times 673 \]
11441 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 12132 |
| Euler totient φ(n) | 10752 |
| Square | 130896481 |
| Cube | 1497586639121 |
| Square root | 106.962610 |
| Digit sum / digital root | 11 / 2 |
| Collatz steps to 1 | 81 |
| Scientific notation | 1.1441 × |
11441 in other forms
| Form | Value |
|---|---|
| In words | eleven thousand four hundred and forty-one |
| Binary (base 2) | 10110010110001 |
| Octal (base 8) | 26261 |
| Hexadecimal (base 16) | 2CB1 |
| Base 3 | 120200202 |
| As time | 11441 seconds = 3 h 10 min 41 s |
Is 11441 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 1) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | 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 11441 a prime number?
No. 11441 = 17 × 673, so it is divisible by 17.
What are the factors of 11441?
1, 17, 673, 11441.
What is 11441 in binary?
10110010110001 (hexadecimal 2CB1, octal 26261).
What is the square root of 11441?
About 106.9626.
Is 11441 divisible by 3?
No. Its digits add up to 11, which is not a multiple of 3.
What is special about the number 11441?
11441 is a semiprime: 17 × 673, the product of two primes.