The number 50018
50018 is a composite number with 8 divisors. Its prime factorisation is 2 × 89 × 281. Divisors (8): 1, 2, 89, 178, 281, 562, 25009, 50018.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
50018 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
50018 is composite. Its prime factorisation is
- 3
The divisors add up to 76140; without 50018 itself that is 26122, so 50018 is deficient (26122 is less than 50018). Euler's totient φ(50018) = 24640 numbers up to 50018 share no factor with it.
- 4
The digits of 50018 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 158 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50018 = 2 \times 89 \times 281 \]
50018 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 76140 |
| Euler totient φ(n) | 24640 |
| Square | 2501800324 |
| Cube | 125135048605832 |
| Square root | 223.647043 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 158 |
| Scientific notation | 5.0018 × |
50018 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand and eighteen |
| Binary (base 2) | 1100001101100010 |
| Octal (base 8) | 141542 |
| Hexadecimal (base 16) | C362 |
| Base 3 | 2112121112 |
| As time | 50018 seconds = 13 h 53 min 38 s |
Is 50018 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (50018 ÷ 2 = 25009) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 3) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 50018 a prime number?
No. 50018 = 2 × 89 × 281, so it is divisible by 2.
What are the factors of 50018?
1, 2, 89, 178, 281, 562, 25009, 50018.
What is 50018 in binary?
1100001101100010 (hexadecimal C362, octal 141542).
What is the square root of 50018?
About 223.6470.
Is 50018 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 50018?
It is a composite number with 8 divisors.