The number 24143
24143 is a composite number with 4 divisors. Its prime factorisation is 7 × 3449. Divisors (4): 1, 7, 3449, 24143.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24143: a semiprime: 7 × 3449, the product of two primes.
- 2
24143 is composite. Its prime factorisation is
- 3
The divisors add up to 27600; without 24143 itself that is 3457, so 24143 is deficient (3457 is less than 24143). Euler's totient φ(24143) = 20688 numbers up to 24143 share no factor with it.
- 4
The digits of 24143 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 43 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24143 = 7 \times 3449 \]
24143 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 27600 |
| Euler totient φ(n) | 20688 |
| Square | 582884449 |
| Cube | 14072579252207 |
| Square root | 155.380179 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 43 |
| Scientific notation | 2.4143 × |
24143 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand one hundred and forty-three |
| Binary (base 2) | 101111001001111 |
| Octal (base 8) | 57117 |
| Hexadecimal (base 16) | 5E4F |
| Base 3 | 1020010012 |
| As time | 24143 seconds = 6 h 42 min 23 s |
Is 24143 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | 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 | Yes (24143 ÷ 7 = 3449) | 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 7) | 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 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 24143 a prime number?
No. 24143 = 7 × 3449, so it is divisible by 7.
What are the factors of 24143?
1, 7, 3449, 24143.
What is 24143 in binary?
101111001001111 (hexadecimal 5E4F, octal 57117).
What is the square root of 24143?
About 155.3802.
Is 24143 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 24143?
24143 is a semiprime: 7 × 3449, the product of two primes.