The number 29321
29321 is a composite number with 4 divisors. Its prime factorisation is 109 × 269. Divisors (4): 1, 109, 269, 29321.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 29321: a semiprime: 109 × 269, the product of two primes.
- 2
29321 is composite. Its prime factorisation is
- 3
The divisors add up to 29700; without 29321 itself that is 379, so 29321 is deficient (379 is less than 29321). Euler's totient φ(29321) = 28944 numbers up to 29321 share no factor with it.
- 4
The digits of 29321 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 103 steps to reach 1.
LaTeX source of the formulas on this page
\[ 29321 = 109 \times 269 \]
29321 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 29700 |
| Euler totient φ(n) | 28944 |
| Square | 859721041 |
| Cube | 25207880643161 |
| Square root | 171.233758 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 103 |
| Scientific notation | 2.9321 × |
29321 in other forms
| Form | Value |
|---|---|
| In words | twenty-nine thousand three hundred and twenty-one |
| Binary (base 2) | 111001010001001 |
| Octal (base 8) | 71211 |
| Hexadecimal (base 16) | 7289 |
| Base 3 | 1111012222 |
| As time | 29321 seconds = 8 h 8 min 41 s |
Is 29321 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 2) | 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 5) | 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 8) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 29321 a prime number?
No. 29321 = 109 × 269, so it is divisible by 109.
What are the factors of 29321?
1, 109, 269, 29321.
What is 29321 in binary?
111001010001001 (hexadecimal 7289, octal 71211).
What is the square root of 29321?
About 171.2338.
Is 29321 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 29321?
29321 is a semiprime: 109 × 269, the product of two primes.