The number 33771
33771 is a composite number with 4 divisors. Its prime factorisation is 3 × 11257. Divisors (4): 1, 3, 11257, 33771.
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How to work it out
- 1
What is special about 33771: a semiprime: 3 × 11257, the product of two primes.
- 2
33771 is composite. Its prime factorisation is
- 3
The divisors add up to 45032; without 33771 itself that is 11261, so 33771 is deficient (11261 is less than 33771). Euler's totient φ(33771) = 22512 numbers up to 33771 share no factor with it.
- 4
The digits of 33771 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 142 steps to reach 1.
LaTeX source of the formulas on this page
\[ 33771 = 3 \times 11257 \]
33771 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 45032 |
| Euler totient φ(n) | 22512 |
| Square | 1140480441 |
| Cube | 38515164973011 |
| Square root | 183.768877 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 142 |
| Scientific notation | 3.3771 × |
33771 in other forms
| Form | Value |
|---|---|
| In words | thirty-three thousand seven hundred and seventy-one |
| Binary (base 2) | 1000001111101011 |
| Octal (base 8) | 101753 |
| Hexadecimal (base 16) | 83EB |
| Base 3 | 1201022210 |
| As time | 33771 seconds = 9 h 22 min 51 s |
Is 33771 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 | Yes (33771 ÷ 3 = 11257) | 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 1) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | 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 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 33771 a prime number?
No. 33771 = 3 × 11257, so it is divisible by 3.
What are the factors of 33771?
1, 3, 11257, 33771.
What is 33771 in binary?
1000001111101011 (hexadecimal 83EB, octal 101753).
What is the square root of 33771?
About 183.7689.
Is 33771 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 33771?
33771 is a semiprime: 3 × 11257, the product of two primes.