The number 38489
38489 is a composite number with 4 divisors. Its prime factorisation is 11 × 3499. Divisors (4): 1, 11, 3499, 38489.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 38489: a semiprime: 11 × 3499, the product of two primes.
- 2
38489 is composite. Its prime factorisation is
- 3
The divisors add up to 42000; without 38489 itself that is 3511, so 38489 is deficient (3511 is less than 38489). Euler's totient φ(38489) = 34980 numbers up to 38489 share no factor with it.
- 4
The digits of 38489 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 75 steps to reach 1.
LaTeX source of the formulas on this page
\[ 38489 = 11 \times 3499 \]
38489 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 42000 |
| Euler totient φ(n) | 34980 |
| Square | 1481403121 |
| Cube | 57017724724169 |
| Square root | 196.186136 |
| Digit sum / digital root | 32 / 5 |
| Collatz steps to 1 | 75 |
| Scientific notation | 3.8489 × |
38489 in other forms
| Form | Value |
|---|---|
| In words | thirty-eight thousand four hundred and eighty-nine |
| Binary (base 2) | 1001011001011001 |
| Octal (base 8) | 113131 |
| Hexadecimal (base 16) | 9659 |
| Base 3 | 1221210112 |
| As time | 38489 seconds = 10 h 41 min 29 s |
Is 38489 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 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 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 | Yes (38489 ÷ 11 = 3499) | 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 38489 a prime number?
No. 38489 = 11 × 3499, so it is divisible by 11.
What are the factors of 38489?
1, 11, 3499, 38489.
What is 38489 in binary?
1001011001011001 (hexadecimal 9659, octal 113131).
What is the square root of 38489?
About 196.1861.
Is 38489 divisible by 3?
No. Its digits add up to 32, which is not a multiple of 3.
What is special about the number 38489?
38489 is a semiprime: 11 × 3499, the product of two primes.