The number 50420
50420 is a composite number with 12 divisors. Its prime factorisation is × 5 × 2521. Divisors (12): 1, 2, 4, 5, 10, 20, 2521, 5042, 10084, 12605, 25210, 50420.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
50420 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
50420 is composite. Its prime factorisation is
- 3
The divisors add up to 105924; without 50420 itself that is 55504, so 50420 is abundant (55504 is more than 50420). Euler's totient φ(50420) = 20160 numbers up to 50420 share no factor with it.
- 4
The digits of 50420 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 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50420 = 2^{2} \times 5 \times 2521 \]50420 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 105924 |
| Euler totient φ(n) | 20160 |
| Square | 2542176400 |
| Cube | 128176534088000 |
| Square root | 224.543982 (= 2√12605) |
| Digit sum / digital root | 11 / 2 |
| Collatz steps to 1 | 65 |
| Scientific notation | 5.042 × |
50420 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand four hundred and twenty |
| Binary (base 2) | 1100010011110100 |
| Octal (base 8) | 142364 |
| Hexadecimal (base 16) | C4F4 |
| Base 3 | 2120011102 |
| As time | 50420 seconds = 14 h 0 min 20 s |
Is 50420 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (50420 ÷ 2 = 25210) | 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 | Yes (50420 ÷ 4 = 12605) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (50420 ÷ 5 = 10084) | 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 6) | 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 4) | 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 | Yes (50420 ÷ 10 = 5042) | 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 8) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 50420 a prime number?
No. 50420 = × 5 × 2521, so it is divisible by 2.
What are the factors of 50420?
1, 2, 4, 5, 10, 20, 2521, 5042, 10084, 12605, 25210, 50420.
What is 50420 in binary?
1100010011110100 (hexadecimal C4F4, octal 142364).
What is the square root of 50420?
About 224.5440, exactly 2√12605.
Is 50420 divisible by 3?
No. Its digits add up to 11, which is not a multiple of 3.
What is special about the number 50420?
It is a composite number with 12 divisors.