The number 32689
32689 is a composite number with 4 divisors. Its prime factorisation is 97 × 337. Divisors (4): 1, 97, 337, 32689.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 32689: a semiprime: 97 × 337, the product of two primes.
- 2
32689 is composite. Its prime factorisation is
- 3
The divisors add up to 33124; without 32689 itself that is 435, so 32689 is deficient (435 is less than 32689). Euler's totient φ(32689) = 32256 numbers up to 32689 share no factor with it.
- 4
The digits of 32689 add up to 28, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 54 steps to reach 1.
LaTeX source of the formulas on this page
\[ 32689 = 97 \times 337 \]
32689 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 33124 |
| Euler totient φ(n) | 32256 |
| Square | 1068570721 |
| Cube | 34930508298769 |
| Square root | 180.800996 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 54 |
| Scientific notation | 3.2689 × |
32689 in other forms
| Form | Value |
|---|---|
| In words | thirty-two thousand six hundred and eighty-nine |
| Binary (base 2) | 111111110110001 |
| Octal (base 8) | 77661 |
| Hexadecimal (base 16) | 7FB1 |
| Base 3 | 1122211201 |
| As time | 32689 seconds = 9 h 4 min 49 s |
Is 32689 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 4) | 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 6) | 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 9) | 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 32689 a prime number?
No. 32689 = 97 × 337, so it is divisible by 97.
What are the factors of 32689?
1, 97, 337, 32689.
What is 32689 in binary?
111111110110001 (hexadecimal 7FB1, octal 77661).
What is the square root of 32689?
About 180.8010.
Is 32689 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 32689?
32689 is a semiprime: 97 × 337, the product of two primes.