The number 57443
57443 is a composite number with 8 divisors. Its prime factorisation is 17 × 31 × 109. Divisors (8): 1, 17, 31, 109, 527, 1853, 3379, 57443.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
57443 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
57443 is composite. Its prime factorisation is
- 3
The divisors add up to 63360; without 57443 itself that is 5917, so 57443 is deficient (5917 is less than 57443). Euler's totient φ(57443) = 51840 numbers up to 57443 share no factor with it.
- 4
The digits of 57443 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 153 steps to reach 1.
LaTeX source of the formulas on this page
\[ 57443 = 17 \times 31 \times 109 \]
57443 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 63360 |
| Euler totient φ(n) | 51840 |
| Square | 3299698249 |
| Cube | 189544566517307 |
| Square root | 239.672693 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 153 |
| Scientific notation | 5.7443 × |
57443 in other forms
| Form | Value |
|---|---|
| In words | fifty-seven thousand four hundred and forty-three |
| Binary (base 2) | 1110000001100011 |
| Octal (base 8) | 160143 |
| Hexadecimal (base 16) | E063 |
| Base 3 | 2220210112 |
| As time | 57443 seconds = 15 h 57 min 23 s |
Is 57443 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 | No (remainder 1) | 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 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 1) | 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 57443 a prime number?
No. 57443 = 17 × 31 × 109, so it is divisible by 17.
What are the factors of 57443?
1, 17, 31, 109, 527, 1853, 3379, 57443.
What is 57443 in binary?
1110000001100011 (hexadecimal E063, octal 160143).
What is the square root of 57443?
About 239.6727.
Is 57443 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 57443?
It is a composite number with 8 divisors.