The number 33043
33043 is a composite number with 4 divisors. Its prime factorisation is 173 × 191. Divisors (4): 1, 173, 191, 33043.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 33043: a semiprime: 173 × 191, the product of two primes.
- 2
33043 is composite. Its prime factorisation is
- 3
The divisors add up to 33408; without 33043 itself that is 365, so 33043 is deficient (365 is less than 33043). Euler's totient φ(33043) = 32680 numbers up to 33043 share no factor with it.
- 4
The digits of 33043 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 67 steps to reach 1.
LaTeX source of the formulas on this page
\[ 33043 = 173 \times 191 \]
33043 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 33408 |
| Euler totient φ(n) | 32680 |
| Square | 1091839849 |
| Cube | 36077664130507 |
| Square root | 181.777336 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 67 |
| Scientific notation | 3.3043 × |
33043 in other forms
| Form | Value |
|---|---|
| In words | thirty-three thousand and forty-three |
| Binary (base 2) | 1000000100010011 |
| Octal (base 8) | 100423 |
| Hexadecimal (base 16) | 8113 |
| Base 3 | 1200022211 |
| As time | 33043 seconds = 9 h 10 min 43 s |
Is 33043 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | 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 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 33043 a prime number?
No. 33043 = 173 × 191, so it is divisible by 173.
What are the factors of 33043?
1, 173, 191, 33043.
What is 33043 in binary?
1000000100010011 (hexadecimal 8113, octal 100423).
What is the square root of 33043?
About 181.7773.
Is 33043 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 33043?
33043 is a semiprime: 173 × 191, the product of two primes.