The number 50139
50139 is a composite number with 10 divisors. Its prime factorisation is × 619. Divisors (10): 1, 3, 9, 27, 81, 619, 1857, 5571, 16713, 50139.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
50139 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
50139 is composite. Its prime factorisation is
- 3
The divisors add up to 75020; without 50139 itself that is 24881, so 50139 is deficient (24881 is less than 50139). Euler's totient φ(50139) = 33372 numbers up to 50139 share no factor with it.
- 4
The digits of 50139 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 114 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50139 = 3^{4} \times 619 \]50139 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 10 |
| Sum of divisors | 75020 |
| Euler totient φ(n) | 33372 |
| Square | 2513919321 |
| Cube | 126045400835619 |
| Square root | 223.917395 (= 9√619) |
| Digit sum / digital root | 18 / 9 |
| Collatz steps to 1 | 114 |
| Scientific notation | 5.0139 × |
50139 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand one hundred and thirty-nine |
| Binary (base 2) | 1100001111011011 |
| Octal (base 8) | 141733 |
| Hexadecimal (base 16) | C3DB |
| Base 3 | 2112210000 |
| As time | 50139 seconds = 13 h 55 min 39 s |
Is 50139 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 (50139 ÷ 3 = 16713) | 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 4) | 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 5) | 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 | Yes (50139 ÷ 9 = 5571) | 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 1) | 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 50139 a prime number?
No. 50139 = × 619, so it is divisible by 3.
What are the factors of 50139?
1, 3, 9, 27, 81, 619, 1857, 5571, 16713, 50139.
What is 50139 in binary?
1100001111011011 (hexadecimal C3DB, octal 141733).
What is the square root of 50139?
About 223.9174, exactly 9√619.
Is 50139 divisible by 3?
Yes. Its digits add up to 18, a multiple of 3.
What is special about the number 50139?
It is a composite number with 10 divisors.