The number 6422
6422 is a composite number with 12 divisors. Its prime factorisation is 2 × × 19. Divisors (12): 1, 2, 13, 19, 26, 38, 169, 247, 338, 494, 3211, 6422.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
6422 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
6422 is composite. Its prime factorisation is
- 3
The divisors add up to 10980; without 6422 itself that is 4558, so 6422 is deficient (4558 is less than 6422). Euler's totient φ(6422) = 2808 numbers up to 6422 share no factor with it.
- 4
The digits of 6422 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 124 steps to reach 1.
LaTeX source of the formulas on this page
\[ 6422 = 2 \times 13^{2} \times 19 \]6422 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 10980 |
| Euler totient φ(n) | 2808 |
| Square | 41242084 |
| Cube | 264856663448 |
| Square root | 80.137382 (= 13√38) |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 124 |
| Scientific notation | 6.422 × |
6422 in other forms
| Form | Value |
|---|---|
| In words | six thousand four hundred and twenty-two |
| Binary (base 2) | 1100100010110 |
| Octal (base 8) | 14426 |
| Hexadecimal (base 16) | 1916 |
| Base 3 | 22210212 |
| As time | 6422 seconds = 1 h 47 min 2 s |
Is 6422 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (6422 ÷ 2 = 3211) | 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 2) | 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 6) | 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 2) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 6422 a prime number?
No. 6422 = 2 × × 19, so it is divisible by 2.
What are the factors of 6422?
1, 2, 13, 19, 26, 38, 169, 247, 338, 494, 3211, 6422.
What is 6422 in binary?
1100100010110 (hexadecimal 1916, octal 14426).
What is the square root of 6422?
About 80.1374, exactly 13√38.
Is 6422 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 6422?
It is a composite number with 12 divisors.