The number 16329
16329 is a composite number with 4 divisors. Its prime factorisation is 3 × 5443. Divisors (4): 1, 3, 5443, 16329.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 16329: a semiprime: 3 × 5443, the product of two primes.
- 2
16329 is composite. Its prime factorisation is
- 3
The divisors add up to 21776; without 16329 itself that is 5447, so 16329 is deficient (5447 is less than 16329). Euler's totient φ(16329) = 10884 numbers up to 16329 share no factor with it.
- 4
The digits of 16329 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 190 steps to reach 1.
LaTeX source of the formulas on this page
\[ 16329 = 3 \times 5443 \]
16329 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 21776 |
| Euler totient φ(n) | 10884 |
| Square | 266636241 |
| Cube | 4353903179289 |
| Square root | 127.784976 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 190 |
| Scientific notation | 1.6329 × |
16329 in other forms
| Form | Value |
|---|---|
| In words | sixteen thousand three hundred and twenty-nine |
| Binary (base 2) | 11111111001001 |
| Octal (base 8) | 37711 |
| Hexadecimal (base 16) | 3FC9 |
| Base 3 | 211101210 |
| As time | 16329 seconds = 4 h 32 min 9 s |
Is 16329 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 (16329 ÷ 3 = 5443) | 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 4) | 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 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 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 16329 a prime number?
No. 16329 = 3 × 5443, so it is divisible by 3.
What are the factors of 16329?
1, 3, 5443, 16329.
What is 16329 in binary?
11111111001001 (hexadecimal 3FC9, octal 37711).
What is the square root of 16329?
About 127.7850.
Is 16329 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 16329?
16329 is a semiprime: 3 × 5443, the product of two primes.