The number 67143
67143 is a composite number with 4 divisors. Its prime factorisation is 3 × 22381. Divisors (4): 1, 3, 22381, 67143.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 67143: a semiprime: 3 × 22381, the product of two primes.
- 2
67143 is composite. Its prime factorisation is
- 3
The divisors add up to 89528; without 67143 itself that is 22385, so 67143 is deficient (22385 is less than 67143). Euler's totient φ(67143) = 44760 numbers up to 67143 share no factor with it.
- 4
The digits of 67143 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 68 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67143 = 3 \times 22381 \]
67143 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 89528 |
| Euler totient φ(n) | 44760 |
| Square | 4508182449 |
| Cube | 302692894173207 |
| Square root | 259.119663 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 68 |
| Scientific notation | 6.7143 × |
67143 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand one hundred and forty-three |
| Binary (base 2) | 10000011001000111 |
| Octal (base 8) | 203107 |
| Hexadecimal (base 16) | 10647 |
| Base 3 | 10102002210 |
| As time | 67143 seconds = 18 h 39 min 3 s |
Is 67143 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 | Yes (67143 ÷ 3 = 22381) | 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 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 3) | 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 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 67143 a prime number?
No. 67143 = 3 × 22381, so it is divisible by 3.
What are the factors of 67143?
1, 3, 22381, 67143.
What is 67143 in binary?
10000011001000111 (hexadecimal 10647, octal 203107).
What is the square root of 67143?
About 259.1197.
Is 67143 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 67143?
67143 is a semiprime: 3 × 22381, the product of two primes.