The number 50731
50731 is a composite number with 4 divisors. Its prime factorisation is 97 × 523. Divisors (4): 1, 97, 523, 50731.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 50731: a semiprime: 97 × 523, the product of two primes.
- 2
50731 is composite. Its prime factorisation is
- 3
The divisors add up to 51352; without 50731 itself that is 621, so 50731 is deficient (621 is less than 50731). Euler's totient φ(50731) = 50112 numbers up to 50731 share no factor with it.
- 4
The digits of 50731 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 57 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50731 = 97 \times 523 \]
50731 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 51352 |
| Euler totient φ(n) | 50112 |
| Square | 2573634361 |
| Cube | 130563044767891 |
| Square root | 225.235432 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 57 |
| Scientific notation | 5.0731 × |
50731 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand seven hundred and thirty-one |
| Binary (base 2) | 1100011000101011 |
| Octal (base 8) | 143053 |
| Hexadecimal (base 16) | C62B |
| Base 3 | 2120120221 |
| As time | 50731 seconds = 14 h 5 min 31 s |
Is 50731 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 1) | 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 2) | 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 7) | 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 10) | 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 50731 a prime number?
No. 50731 = 97 × 523, so it is divisible by 97.
What are the factors of 50731?
1, 97, 523, 50731.
What is 50731 in binary?
1100011000101011 (hexadecimal C62B, octal 143053).
What is the square root of 50731?
About 225.2354.
Is 50731 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 50731?
50731 is a semiprime: 97 × 523, the product of two primes.