The number 38422
38422 is a composite number with 4 divisors. Its prime factorisation is 2 × 19211. Divisors (4): 1, 2, 19211, 38422.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 38422: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 19211, the product of two primes.
- 2
38422 is composite. Its prime factorisation is
- 3
The divisors add up to 57636; without 38422 itself that is 19214, so 38422 is deficient (19214 is less than 38422). Euler's totient φ(38422) = 19210 numbers up to 38422 share no factor with it.
- 4
The digits of 38422 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 80 steps to reach 1.
LaTeX source of the formulas on this page
\[ 38422 = 2 \times 19211 \]
38422 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 57636 |
| Euler totient φ(n) | 19210 |
| Square | 1476250084 |
| Cube | 56720480727448 |
| Square root | 196.015306 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 80 |
| Scientific notation | 3.8422 × |
38422 in other forms
| Form | Value |
|---|---|
| In words | thirty-eight thousand four hundred and twenty-two |
| Binary (base 2) | 1001011000010110 |
| Octal (base 8) | 113026 |
| Hexadecimal (base 16) | 9616 |
| Base 3 | 1221201001 |
| As time | 38422 seconds = 10 h 40 min 22 s |
Is 38422 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (38422 ÷ 2 = 19211) | 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 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 6) | 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 | 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 38422 a prime number?
No. 38422 = 2 × 19211, so it is divisible by 2.
What are the factors of 38422?
1, 2, 19211, 38422.
What is 38422 in binary?
1001011000010110 (hexadecimal 9616, octal 113026).
What is the square root of 38422?
About 196.0153.
Is 38422 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 38422?
38422 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 19211, the product of two primes.