The number 50842
50842 is a composite number with 8 divisors. Its prime factorisation is 2 × 11 × 2311. Divisors (8): 1, 2, 11, 22, 2311, 4622, 25421, 50842.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 50842: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
50842 is composite. Its prime factorisation is
- 3
The divisors add up to 83232; without 50842 itself that is 32390, so 50842 is deficient (32390 is less than 50842). Euler's totient φ(50842) = 23100 numbers up to 50842 share no factor with it.
- 4
The digits of 50842 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 57 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50842 = 2 \times 11 \times 2311 \]
50842 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 83232 |
| Euler totient φ(n) | 23100 |
| Square | 2584908964 |
| Cube | 131421941547688 |
| Square root | 225.481707 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 57 |
| Scientific notation | 5.0842 × |
50842 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand eight hundred and forty-two |
| Binary (base 2) | 1100011010011010 |
| Octal (base 8) | 143232 |
| Hexadecimal (base 16) | C69A |
| Base 3 | 2120202001 |
| As time | 50842 seconds = 14 h 7 min 22 s |
Is 50842 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (50842 ÷ 2 = 25421) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | 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 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (50842 ÷ 11 = 4622) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 50842 a prime number?
No. 50842 = 2 × 11 × 2311, so it is divisible by 2.
What are the factors of 50842?
1, 2, 11, 22, 2311, 4622, 25421, 50842.
What is 50842 in binary?
1100011010011010 (hexadecimal C69A, octal 143232).
What is the square root of 50842?
About 225.4817.
Is 50842 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 50842?
50842 is a happy number: repeatedly adding the squares of its digits reaches 1.