The number 23441
23441 is a composite number with 4 divisors. Its prime factorisation is 11 × 2131. Divisors (4): 1, 11, 2131, 23441.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 23441: a semiprime: 11 × 2131, the product of two primes.
- 2
23441 is composite. Its prime factorisation is
- 3
The divisors add up to 25584; without 23441 itself that is 2143, so 23441 is deficient (2143 is less than 23441). Euler's totient φ(23441) = 21300 numbers up to 23441 share no factor with it.
- 4
The digits of 23441 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 131 steps to reach 1.
LaTeX source of the formulas on this page
\[ 23441 = 11 \times 2131 \]
23441 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 25584 |
| Euler totient φ(n) | 21300 |
| Square | 549480481 |
| Cube | 12880371955121 |
| Square root | 153.104539 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 131 |
| Scientific notation | 2.3441 × |
23441 in other forms
| Form | Value |
|---|---|
| In words | twenty-three thousand four hundred and forty-one |
| Binary (base 2) | 101101110010001 |
| Octal (base 8) | 55621 |
| Hexadecimal (base 16) | 5B91 |
| Base 3 | 1012011012 |
| As time | 23441 seconds = 6 h 30 min 41 s |
Is 23441 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 5) | 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 5) | 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 | Yes (23441 ÷ 11 = 2131) | 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 23441 a prime number?
No. 23441 = 11 × 2131, so it is divisible by 11.
What are the factors of 23441?
1, 11, 2131, 23441.
What is 23441 in binary?
101101110010001 (hexadecimal 5B91, octal 55621).
What is the square root of 23441?
About 153.1045.
Is 23441 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 23441?
23441 is a semiprime: 11 × 2131, the product of two primes.