The number 50749
50749 is a composite number with 4 divisors. Its prime factorisation is 19 × 2671. Divisors (4): 1, 19, 2671, 50749.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 50749: a semiprime: 19 × 2671, the product of two primes.
- 2
50749 is composite. Its prime factorisation is
- 3
The divisors add up to 53440; without 50749 itself that is 2691, so 50749 is deficient (2691 is less than 50749). Euler's totient φ(50749) = 48060 numbers up to 50749 share no factor with it.
- 4
The digits of 50749 add up to 25, 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
\[ 50749 = 19 \times 2671 \]
50749 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 53440 |
| Euler totient φ(n) | 48060 |
| Square | 2575461001 |
| Cube | 130702070339749 |
| Square root | 225.275387 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 57 |
| Scientific notation | 5.0749 × |
50749 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand seven hundred and forty-nine |
| Binary (base 2) | 1100011000111101 |
| Octal (base 8) | 143075 |
| Hexadecimal (base 16) | C63D |
| Base 3 | 2120121121 |
| As time | 50749 seconds = 14 h 5 min 49 s |
Is 50749 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | 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 5) | 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 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 50749 a prime number?
No. 50749 = 19 × 2671, so it is divisible by 19.
What are the factors of 50749?
1, 19, 2671, 50749.
What is 50749 in binary?
1100011000111101 (hexadecimal C63D, octal 143075).
What is the square root of 50749?
About 225.2754.
Is 50749 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 50749?
50749 is a semiprime: 19 × 2671, the product of two primes.