The number 50187
50187 is a composite number with 4 divisors. Its prime factorisation is 3 × 16729. Divisors (4): 1, 3, 16729, 50187.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 50187: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 3 × 16729, the product of two primes.
- 2
50187 is composite. Its prime factorisation is
- 3
The divisors add up to 66920; without 50187 itself that is 16733, so 50187 is deficient (16733 is less than 50187). Euler's totient φ(50187) = 33456 numbers up to 50187 share no factor with it.
- 4
The digits of 50187 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50187 = 3 \times 16729 \]
50187 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 66920 |
| Euler totient φ(n) | 33456 |
| Square | 2518734969 |
| Cube | 126407751889203 |
| Square root | 224.024552 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 65 |
| Scientific notation | 5.0187 × |
50187 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand one hundred and eighty-seven |
| Binary (base 2) | 1100010000001011 |
| Octal (base 8) | 142013 |
| Hexadecimal (base 16) | C40B |
| Base 3 | 2112211210 |
| As time | 50187 seconds = 13 h 56 min 27 s |
Is 50187 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 | Yes (50187 ÷ 3 = 16729) | 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 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | 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 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 50187 a prime number?
No. 50187 = 3 × 16729, so it is divisible by 3.
What are the factors of 50187?
1, 3, 16729, 50187.
What is 50187 in binary?
1100010000001011 (hexadecimal C40B, octal 142013).
What is the square root of 50187?
About 224.0246.
Is 50187 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 50187?
50187 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 3 × 16729, the product of two primes.