The number 38429
38429 is a composite number with 4 divisors. Its prime factorisation is 83 × 463. Divisors (4): 1, 83, 463, 38429.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 38429: a semiprime: 83 × 463, the product of two primes.
- 2
38429 is composite. Its prime factorisation is
- 3
The divisors add up to 38976; without 38429 itself that is 547, so 38429 is deficient (547 is less than 38429). Euler's totient φ(38429) = 37884 numbers up to 38429 share no factor with it.
- 4
The digits of 38429 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 124 steps to reach 1.
LaTeX source of the formulas on this page
\[ 38429 = 83 \times 463 \]
38429 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 38976 |
| Euler totient φ(n) | 37884 |
| Square | 1476788041 |
| Cube | 56751487627589 |
| Square root | 196.033160 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 124 |
| Scientific notation | 3.8429 × |
38429 in other forms
| Form | Value |
|---|---|
| In words | thirty-eight thousand four hundred and twenty-nine |
| Binary (base 2) | 1001011000011101 |
| Octal (base 8) | 113035 |
| Hexadecimal (base 16) | 961D |
| Base 3 | 1221201022 |
| As time | 38429 seconds = 10 h 40 min 29 s |
Is 38429 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 38429 a prime number?
No. 38429 = 83 × 463, so it is divisible by 83.
What are the factors of 38429?
1, 83, 463, 38429.
What is 38429 in binary?
1001011000011101 (hexadecimal 961D, octal 113035).
What is the square root of 38429?
About 196.0332.
Is 38429 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 38429?
38429 is a semiprime: 83 × 463, the product of two primes.