The number 41689
41689 is a composite number with 4 divisors. Its prime factorisation is 47 × 887. Divisors (4): 1, 47, 887, 41689.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 41689: a semiprime: 47 × 887, the product of two primes.
- 2
41689 is composite. Its prime factorisation is
- 3
The divisors add up to 42624; without 41689 itself that is 935, so 41689 is deficient (935 is less than 41689). Euler's totient φ(41689) = 40756 numbers up to 41689 share no factor with it.
- 4
The digits of 41689 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 44 steps to reach 1.
LaTeX source of the formulas on this page
\[ 41689 = 47 \times 887 \]
41689 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 42624 |
| Euler totient φ(n) | 40756 |
| Square | 1737972721 |
| Cube | 72454344765769 |
| Square root | 204.178843 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 44 |
| Scientific notation | 4.1689 × |
41689 in other forms
| Form | Value |
|---|---|
| In words | forty-one thousand six hundred and eighty-nine |
| Binary (base 2) | 1010001011011001 |
| Octal (base 8) | 121331 |
| Hexadecimal (base 16) | A2D9 |
| Base 3 | 2010012001 |
| As time | 41689 seconds = 11 h 34 min 49 s |
Is 41689 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 4) | 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 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 41689 a prime number?
No. 41689 = 47 × 887, so it is divisible by 47.
What are the factors of 41689?
1, 47, 887, 41689.
What is 41689 in binary?
1010001011011001 (hexadecimal A2D9, octal 121331).
What is the square root of 41689?
About 204.1788.
Is 41689 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 41689?
41689 is a semiprime: 47 × 887, the product of two primes.