The number 53443
53443 is a composite number with 4 divisors. Its prime factorisation is 13 × 4111. Divisors (4): 1, 13, 4111, 53443.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 53443: a semiprime: 13 × 4111, the product of two primes.
- 2
53443 is composite. Its prime factorisation is
- 3
The divisors add up to 57568; without 53443 itself that is 4125, so 53443 is deficient (4125 is less than 53443). Euler's totient φ(53443) = 49320 numbers up to 53443 share no factor with it.
- 4
The digits of 53443 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 215 steps to reach 1.
LaTeX source of the formulas on this page
\[ 53443 = 13 \times 4111 \]
53443 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 57568 |
| Euler totient φ(n) | 49320 |
| Square | 2856154249 |
| Cube | 152641451529307 |
| Square root | 231.177421 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 215 |
| Scientific notation | 5.3443 × |
53443 in other forms
| Form | Value |
|---|---|
| In words | fifty-three thousand four hundred and forty-three |
| Binary (base 2) | 1101000011000011 |
| Octal (base 8) | 150303 |
| Hexadecimal (base 16) | D0C3 |
| Base 3 | 2201022101 |
| As time | 53443 seconds = 14 h 50 min 43 s |
Is 53443 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 1) | 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 1) | 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 1) | 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 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 53443 a prime number?
No. 53443 = 13 × 4111, so it is divisible by 13.
What are the factors of 53443?
1, 13, 4111, 53443.
What is 53443 in binary?
1101000011000011 (hexadecimal D0C3, octal 150303).
What is the square root of 53443?
About 231.1774.
Is 53443 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 53443?
53443 is a semiprime: 13 × 4111, the product of two primes.