The number 33481
33481 is a composite number with 4 divisors. Its prime factorisation is 7 × 4783. Divisors (4): 1, 7, 4783, 33481.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 33481: a semiprime: 7 × 4783, the product of two primes.
- 2
33481 is composite. Its prime factorisation is
- 3
The divisors add up to 38272; without 33481 itself that is 4791, so 33481 is deficient (4791 is less than 33481). Euler's totient φ(33481) = 28692 numbers up to 33481 share no factor with it.
- 4
The digits of 33481 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 111 steps to reach 1.
LaTeX source of the formulas on this page
\[ 33481 = 7 \times 4783 \]
33481 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 38272 |
| Euler totient φ(n) | 28692 |
| Square | 1120977361 |
| Cube | 37531443023641 |
| Square root | 182.978141 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 111 |
| Scientific notation | 3.3481 × |
33481 in other forms
| Form | Value |
|---|---|
| In words | thirty-three thousand four hundred and eighty-one |
| Binary (base 2) | 1000001011001001 |
| Octal (base 8) | 101311 |
| Hexadecimal (base 16) | 82C9 |
| Base 3 | 1200221001 |
| As time | 33481 seconds = 9 h 18 min 1 s |
Is 33481 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 (33481 ÷ 7 = 4783) | 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 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | 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 33481 a prime number?
No. 33481 = 7 × 4783, so it is divisible by 7.
What are the factors of 33481?
1, 7, 4783, 33481.
What is 33481 in binary?
1000001011001001 (hexadecimal 82C9, octal 101311).
What is the square root of 33481?
About 182.9781.
Is 33481 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 33481?
33481 is a semiprime: 7 × 4783, the product of two primes.