The number 38426
38426 is a composite number with 4 divisors. Its prime factorisation is 2 × 19213. Divisors (4): 1, 2, 19213, 38426.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 38426: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 19213, the product of two primes.
- 2
38426 is composite. Its prime factorisation is
- 3
The divisors add up to 57642; without 38426 itself that is 19216, so 38426 is deficient (19216 is less than 38426). Euler's totient φ(38426) = 19212 numbers up to 38426 share no factor with it.
- 4
The digits of 38426 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 168 steps to reach 1.
LaTeX source of the formulas on this page
\[ 38426 = 2 \times 19213 \]
38426 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 57642 |
| Euler totient φ(n) | 19212 |
| Square | 1476557476 |
| Cube | 56738197572776 |
| Square root | 196.025509 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 168 |
| Scientific notation | 3.8426 × |
38426 in other forms
| Form | Value |
|---|---|
| In words | thirty-eight thousand four hundred and twenty-six |
| Binary (base 2) | 1001011000011010 |
| Octal (base 8) | 113032 |
| Hexadecimal (base 16) | 961A |
| Base 3 | 1221201012 |
| As time | 38426 seconds = 10 h 40 min 26 s |
Is 38426 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (38426 ÷ 2 = 19213) | 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 1) | 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 2) | 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 6) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | 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 38426 a prime number?
No. 38426 = 2 × 19213, so it is divisible by 2.
What are the factors of 38426?
1, 2, 19213, 38426.
What is 38426 in binary?
1001011000011010 (hexadecimal 961A, octal 113032).
What is the square root of 38426?
About 196.0255.
Is 38426 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 38426?
38426 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 19213, the product of two primes.