The number 50661
50661 is a composite number with 12 divisors. Its prime factorisation is × 13 × 433. Divisors (12): 1, 3, 9, 13, 39, 117, 433, 1299, 3897, 5629, 16887, 50661.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
50661 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
50661 is composite. Its prime factorisation is
- 3
The divisors add up to 78988; without 50661 itself that is 28327, so 50661 is deficient (28327 is less than 50661). Euler's totient φ(50661) = 31104 numbers up to 50661 share no factor with it.
- 4
The digits of 50661 add up to 18, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 109 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50661 = 3^{2} \times 13 \times 433 \]50661 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 78988 |
| Euler totient φ(n) | 31104 |
| Square | 2566536921 |
| Cube | 130023326954781 |
| Square root | 225.079986 (= 3√5629) |
| Digit sum / digital root | 18 / 9 |
| Collatz steps to 1 | 109 |
| Scientific notation | 5.0661 × |
50661 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand six hundred and sixty-one |
| Binary (base 2) | 1100010111100101 |
| Octal (base 8) | 142745 |
| Hexadecimal (base 16) | C5E5 |
| Base 3 | 2120111100 |
| As time | 50661 seconds = 14 h 4 min 21 s |
Is 50661 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 (50661 ÷ 3 = 16887) | 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 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | Yes (50661 ÷ 9 = 5629) | 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 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 50661 a prime number?
No. 50661 = × 13 × 433, so it is divisible by 3.
What are the factors of 50661?
1, 3, 9, 13, 39, 117, 433, 1299, 3897, 5629, 16887, 50661.
What is 50661 in binary?
1100010111100101 (hexadecimal C5E5, octal 142745).
What is the square root of 50661?
About 225.0800, exactly 3√5629.
Is 50661 divisible by 3?
Yes. Its digits add up to 18, a multiple of 3.
What is special about the number 50661?
It is a composite number with 12 divisors.