The number 50871
50871 is a composite number with 8 divisors. Its prime factorisation is 3 × 31 × 547. Divisors (8): 1, 3, 31, 93, 547, 1641, 16957, 50871.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 50871: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
50871 is composite. Its prime factorisation is
- 3
The divisors add up to 70144; without 50871 itself that is 19273, so 50871 is deficient (19273 is less than 50871). Euler's totient φ(50871) = 32760 numbers up to 50871 share no factor with it.
- 4
The digits of 50871 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 57 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50871 = 3 \times 31 \times 547 \]
50871 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 70144 |
| Euler totient φ(n) | 32760 |
| Square | 2587858641 |
| Cube | 131646956926311 |
| Square root | 225.546004 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 57 |
| Scientific notation | 5.0871 × |
50871 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand eight hundred and seventy-one |
| Binary (base 2) | 1100011010110111 |
| Octal (base 8) | 143267 |
| Hexadecimal (base 16) | C6B7 |
| Base 3 | 2120210010 |
| As time | 50871 seconds = 14 h 7 min 51 s |
Is 50871 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 (50871 ÷ 3 = 16957) | 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 3) | 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 7) | 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 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | 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 50871 a prime number?
No. 50871 = 3 × 31 × 547, so it is divisible by 3.
What are the factors of 50871?
1, 3, 31, 93, 547, 1641, 16957, 50871.
What is 50871 in binary?
1100011010110111 (hexadecimal C6B7, octal 143267).
What is the square root of 50871?
About 225.5460.
Is 50871 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 50871?
50871 is a happy number: repeatedly adding the squares of its digits reaches 1.