The number 33061
33061 is a composite number with 4 divisors. Its prime factorisation is 7 × 4723. Divisors (4): 1, 7, 4723, 33061.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 33061: a semiprime: 7 × 4723, the product of two primes.
- 2
33061 is composite. Its prime factorisation is
- 3
The divisors add up to 37792; without 33061 itself that is 4731, so 33061 is deficient (4731 is less than 33061). Euler's totient φ(33061) = 28332 numbers up to 33061 share no factor with it.
- 4
The digits of 33061 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 142 steps to reach 1.
LaTeX source of the formulas on this page
\[ 33061 = 7 \times 4723 \]
33061 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 37792 |
| Euler totient φ(n) | 28332 |
| Square | 1093029721 |
| Cube | 36136655605981 |
| Square root | 181.826841 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 142 |
| Scientific notation | 3.3061 × |
33061 in other forms
| Form | Value |
|---|---|
| In words | thirty-three thousand and sixty-one |
| Binary (base 2) | 1000000100100101 |
| Octal (base 8) | 100445 |
| Hexadecimal (base 16) | 8125 |
| Base 3 | 1200100111 |
| As time | 33061 seconds = 9 h 11 min 1 s |
Is 33061 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 1) | 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 | Yes (33061 ÷ 7 = 4723) | 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 5) | 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 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | 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 33061 a prime number?
No. 33061 = 7 × 4723, so it is divisible by 7.
What are the factors of 33061?
1, 7, 4723, 33061.
What is 33061 in binary?
1000000100100101 (hexadecimal 8125, octal 100445).
What is the square root of 33061?
About 181.8268.
Is 33061 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 33061?
33061 is a semiprime: 7 × 4723, the product of two primes.