The number 5422
5422 is a composite number with 4 divisors. Its prime factorisation is 2 × 2711. Divisors (4): 1, 2, 2711, 5422.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 5422: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 2711, the product of two primes.
- 2
5422 is composite. Its prime factorisation is
- 3
The divisors add up to 8136; without 5422 itself that is 2714, so 5422 is deficient (2714 is less than 5422). Euler's totient φ(5422) = 2710 numbers up to 5422 share no factor with it.
- 4
The digits of 5422 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 116 steps to reach 1.
LaTeX source of the formulas on this page
\[ 5422 = 2 \times 2711 \]
5422 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 8136 |
| Euler totient φ(n) | 2710 |
| Square | 29398084 |
| Cube | 159396411448 |
| Square root | 73.634231 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 116 |
| Scientific notation | 5.422 × |
5422 in other forms
| Form | Value |
|---|---|
| In words | five thousand four hundred and twenty-two |
| Binary (base 2) | 1010100101110 |
| Octal (base 8) | 12456 |
| Hexadecimal (base 16) | 152E |
| Base 3 | 21102211 |
| As time | 5422 seconds = 1 h 30 min 22 s |
Is 5422 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (5422 ÷ 2 = 2711) | 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 4) | 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 4) | 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 10) | 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 5422 a prime number?
No. 5422 = 2 × 2711, so it is divisible by 2.
What are the factors of 5422?
1, 2, 2711, 5422.
What is 5422 in binary?
1010100101110 (hexadecimal 152E, octal 12456).
What is the square root of 5422?
About 73.6342.
Is 5422 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 5422?
5422 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 2711, the product of two primes.