The number 50791
50791 is a composite number with 4 divisors. Its prime factorisation is 13 × 3907. Divisors (4): 1, 13, 3907, 50791.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 50791: a semiprime: 13 × 3907, the product of two primes.
- 2
50791 is composite. Its prime factorisation is
- 3
The divisors add up to 54712; without 50791 itself that is 3921, so 50791 is deficient (3921 is less than 50791). Euler's totient φ(50791) = 46872 numbers up to 50791 share no factor with it.
- 4
The digits of 50791 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 202 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50791 = 13 \times 3907 \]
50791 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 54712 |
| Euler totient φ(n) | 46872 |
| Square | 2579725681 |
| Cube | 131026847063671 |
| Square root | 225.368587 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 202 |
| Scientific notation | 5.0791 × |
50791 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand seven hundred and ninety-one |
| Binary (base 2) | 1100011001100111 |
| Octal (base 8) | 143147 |
| Hexadecimal (base 16) | C667 |
| Base 3 | 2120200011 |
| As time | 50791 seconds = 14 h 6 min 31 s |
Is 50791 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 6) | 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 4) | 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 4) | 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 50791 a prime number?
No. 50791 = 13 × 3907, so it is divisible by 13.
What are the factors of 50791?
1, 13, 3907, 50791.
What is 50791 in binary?
1100011001100111 (hexadecimal C667, octal 143147).
What is the square root of 50791?
About 225.3686.
Is 50791 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 50791?
50791 is a semiprime: 13 × 3907, the product of two primes.