The number 53711
53711 is a composite number with 4 divisors. Its prime factorisation is 7 × 7673. Divisors (4): 1, 7, 7673, 53711.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 53711: a semiprime: 7 × 7673, the product of two primes.
- 2
53711 is composite. Its prime factorisation is
- 3
The divisors add up to 61392; without 53711 itself that is 7681, so 53711 is deficient (7681 is less than 53711). Euler's totient φ(53711) = 46032 numbers up to 53711 share no factor with it.
- 4
The digits of 53711 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 96 steps to reach 1.
LaTeX source of the formulas on this page
\[ 53711 = 7 \times 7673 \]
53711 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 61392 |
| Euler totient φ(n) | 46032 |
| Square | 2884871521 |
| Cube | 154949334264431 |
| Square root | 231.756338 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 96 |
| Scientific notation | 5.3711 × |
53711 in other forms
| Form | Value |
|---|---|
| In words | fifty-three thousand seven hundred and eleven |
| Binary (base 2) | 1101000111001111 |
| Octal (base 8) | 150717 |
| Hexadecimal (base 16) | D1CF |
| Base 3 | 2201200022 |
| As time | 53711 seconds = 14 h 55 min 11 s |
Is 53711 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 1) | 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 (53711 ÷ 7 = 7673) | 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 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | 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 53711 a prime number?
No. 53711 = 7 × 7673, so it is divisible by 7.
What are the factors of 53711?
1, 7, 7673, 53711.
What is 53711 in binary?
1101000111001111 (hexadecimal D1CF, octal 150717).
What is the square root of 53711?
About 231.7563.
Is 53711 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 53711?
53711 is a semiprime: 7 × 7673, the product of two primes.