The number 50015
50015 is a composite number with 8 divisors. Its prime factorisation is 5 × 7 × 1429. Divisors (8): 1, 5, 7, 35, 1429, 7145, 10003, 50015.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
50015 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
50015 is composite. Its prime factorisation is
- 3
The divisors add up to 68640; without 50015 itself that is 18625, so 50015 is deficient (18625 is less than 50015). Euler's totient φ(50015) = 34272 numbers up to 50015 share no factor with it.
- 4
The digits of 50015 add up to 11, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 158 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50015 = 5 \times 7 \times 1429 \]
50015 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 68640 |
| Euler totient φ(n) | 34272 |
| Square | 2501500225 |
| Cube | 125112533753375 |
| Square root | 223.640336 |
| Digit sum / digital root | 11 / 2 |
| Collatz steps to 1 | 158 |
| Scientific notation | 5.0015 × |
50015 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand and fifteen |
| Binary (base 2) | 1100001101011111 |
| Octal (base 8) | 141537 |
| Hexadecimal (base 16) | C35F |
| Base 3 | 2112121102 |
| As time | 50015 seconds = 13 h 53 min 35 s |
Is 50015 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 | No (remainder 2) | 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 | Yes (50015 ÷ 5 = 10003) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (50015 ÷ 7 = 7145) | 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 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 50015 a prime number?
No. 50015 = 5 × 7 × 1429, so it is divisible by 5.
What are the factors of 50015?
1, 5, 7, 35, 1429, 7145, 10003, 50015.
What is 50015 in binary?
1100001101011111 (hexadecimal C35F, octal 141537).
What is the square root of 50015?
About 223.6403.
Is 50015 divisible by 3?
No. Its digits add up to 11, which is not a multiple of 3.
What is special about the number 50015?
It is a composite number with 8 divisors.