The number 33241
33241 is a composite number with 4 divisors. Its prime factorisation is 13 × 2557. Divisors (4): 1, 13, 2557, 33241.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 33241: a Harshad number: divisible by its digit sum 13; a semiprime: 13 × 2557, the product of two primes.
- 2
33241 is composite. Its prime factorisation is
- 3
The divisors add up to 35812; without 33241 itself that is 2571, so 33241 is deficient (2571 is less than 33241). Euler's totient φ(33241) = 30672 numbers up to 33241 share no factor with it.
- 4
The digits of 33241 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
\[ 33241 = 13 \times 2557 \]
33241 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 35812 |
| Euler totient φ(n) | 30672 |
| Square | 1104964081 |
| Cube | 36730111016521 |
| Square root | 182.321145 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 67 |
| Scientific notation | 3.3241 × |
33241 in other forms
| Form | Value |
|---|---|
| In words | thirty-three thousand two hundred and forty-one |
| Binary (base 2) | 1000000111011001 |
| Octal (base 8) | 100731 |
| Hexadecimal (base 16) | 81D9 |
| Base 3 | 1200121011 |
| As time | 33241 seconds = 9 h 14 min 1 s |
Is 33241 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 | No (remainder 5) | 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 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 10) | 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 33241 a prime number?
No. 33241 = 13 × 2557, so it is divisible by 13.
What are the factors of 33241?
1, 13, 2557, 33241.
What is 33241 in binary?
1000000111011001 (hexadecimal 81D9, octal 100731).
What is the square root of 33241?
About 182.3211.
Is 33241 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 33241?
33241 is a Harshad number: divisible by its digit sum 13; a semiprime: 13 × 2557, the product of two primes.