The number 50720
50720 is a composite number with 24 divisors. Its prime factorisation is × 5 × 317. Divisors (24): 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 317, 634, 1268, 1585 … 50720.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
50720 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
50720 is composite. Its prime factorisation is
- 3
The divisors add up to 120204; without 50720 itself that is 69484, so 50720 is abundant (69484 is more than 50720). Euler's totient φ(50720) = 20224 numbers up to 50720 share no factor with it.
- 4
The digits of 50720 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 83 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50720 = 2^{5} \times 5 \times 317 \]50720 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 24 |
| Sum of divisors | 120204 |
| Euler totient φ(n) | 20224 |
| Square | 2572518400 |
| Cube | 130478133248000 |
| Square root | 225.211012 (= 4√3170) |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 83 |
| Scientific notation | 5.072 × |
50720 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand seven hundred and twenty |
| Binary (base 2) | 1100011000100000 |
| Octal (base 8) | 143040 |
| Hexadecimal (base 16) | C620 |
| Base 3 | 2120120112 |
| As time | 50720 seconds = 14 h 5 min 20 s |
Is 50720 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (50720 ÷ 2 = 25360) | 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 (50720 ÷ 4 = 12680) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (50720 ÷ 5 = 10144) | 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 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 | Yes (50720 ÷ 8 = 6340) | 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 | Yes (50720 ÷ 10 = 5072) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | 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 50720 a prime number?
No. 50720 = × 5 × 317, so it is divisible by 2.
What are the factors of 50720?
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 317, 634, 1268, 1585, 2536, 3170, 5072, 6340, 10144, 12680, 25360, 50720.
What is 50720 in binary?
1100011000100000 (hexadecimal C620, octal 143040).
What is the square root of 50720?
About 225.2110, exactly 4√3170.
Is 50720 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 50720?
It is a composite number with 24 divisors.