The number 43849
43849 is a composite number with 4 divisors. Its prime factorisation is 13 × 3373. Divisors (4): 1, 13, 3373, 43849.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 43849: a semiprime: 13 × 3373, the product of two primes.
- 2
43849 is composite. Its prime factorisation is
- 3
The divisors add up to 47236; without 43849 itself that is 3387, so 43849 is deficient (3387 is less than 43849). Euler's totient φ(43849) = 40464 numbers up to 43849 share no factor with it.
- 4
The digits of 43849 add up to 28, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 194 steps to reach 1.
LaTeX source of the formulas on this page
\[ 43849 = 13 \times 3373 \]
43849 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 47236 |
| Euler totient φ(n) | 40464 |
| Square | 1922734801 |
| Cube | 84309998289049 |
| Square root | 209.401528 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 194 |
| Scientific notation | 4.3849 × |
43849 in other forms
| Form | Value |
|---|---|
| In words | forty-three thousand eight hundred and forty-nine |
| Binary (base 2) | 1010101101001001 |
| Octal (base 8) | 125511 |
| Hexadecimal (base 16) | AB49 |
| Base 3 | 2020011001 |
| As time | 43849 seconds = 12 h 10 min 49 s |
Is 43849 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 1) | 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 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 1) | 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 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 43849 a prime number?
No. 43849 = 13 × 3373, so it is divisible by 13.
What are the factors of 43849?
1, 13, 3373, 43849.
What is 43849 in binary?
1010101101001001 (hexadecimal AB49, octal 125511).
What is the square root of 43849?
About 209.4015.
Is 43849 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 43849?
43849 is a semiprime: 13 × 3373, the product of two primes.