The number 38849
38849 is a composite number with 4 divisors. Its prime factorisation is 53 × 733. Divisors (4): 1, 53, 733, 38849.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 38849: a semiprime: 53 × 733, the product of two primes.
- 2
38849 is composite. Its prime factorisation is
- 3
The divisors add up to 39636; without 38849 itself that is 787, so 38849 is deficient (787 is less than 38849). Euler's totient φ(38849) = 38064 numbers up to 38849 share no factor with it.
- 4
The digits of 38849 add up to 32, 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
\[ 38849 = 53 \times 733 \]
38849 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 39636 |
| Euler totient φ(n) | 38064 |
| Square | 1509244801 |
| Cube | 58632651274049 |
| Square root | 197.101497 |
| Digit sum / digital root | 32 / 5 |
| Collatz steps to 1 | 124 |
| Scientific notation | 3.8849 × |
38849 in other forms
| Form | Value |
|---|---|
| In words | thirty-eight thousand eight hundred and forty-nine |
| Binary (base 2) | 1001011111000001 |
| Octal (base 8) | 113701 |
| Hexadecimal (base 16) | 97C1 |
| Base 3 | 1222021212 |
| As time | 38849 seconds = 10 h 47 min 29 s |
Is 38849 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 1) | 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 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | 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 38849 a prime number?
No. 38849 = 53 × 733, so it is divisible by 53.
What are the factors of 38849?
1, 53, 733, 38849.
What is 38849 in binary?
1001011111000001 (hexadecimal 97C1, octal 113701).
What is the square root of 38849?
About 197.1015.
Is 38849 divisible by 3?
No. Its digits add up to 32, which is not a multiple of 3.
What is special about the number 38849?
38849 is a semiprime: 53 × 733, the product of two primes.