The number 67443
67443 is a composite number with 4 divisors. Its prime factorisation is 3 × 22481. Divisors (4): 1, 3, 22481, 67443.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 67443: a semiprime: 3 × 22481, the product of two primes.
- 2
67443 is composite. Its prime factorisation is
- 3
The divisors add up to 89928; without 67443 itself that is 22485, so 67443 is deficient (22485 is less than 67443). Euler's totient φ(67443) = 44960 numbers up to 67443 share no factor with it.
- 4
The digits of 67443 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 60 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67443 = 3 \times 22481 \]
67443 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 89928 |
| Euler totient φ(n) | 44960 |
| Square | 4548558249 |
| Cube | 306768413987307 |
| Square root | 259.697901 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 60 |
| Scientific notation | 6.7443 × |
67443 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand four hundred and forty-three |
| Binary (base 2) | 10000011101110011 |
| Octal (base 8) | 203563 |
| Hexadecimal (base 16) | 10773 |
| Base 3 | 10102111220 |
| As time | 67443 seconds = 18 h 44 min 3 s |
Is 67443 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 (67443 ÷ 3 = 22481) | 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 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | 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 2) | 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 67443 a prime number?
No. 67443 = 3 × 22481, so it is divisible by 3.
What are the factors of 67443?
1, 3, 22481, 67443.
What is 67443 in binary?
10000011101110011 (hexadecimal 10773, octal 203563).
What is the square root of 67443?
About 259.6979.
Is 67443 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 67443?
67443 is a semiprime: 3 × 22481, the product of two primes.