The number 47046
47046 is a composite number with 8 divisors. Its prime factorisation is 2 × 3 × 7841. Divisors (8): 1, 2, 3, 6, 7841, 15682, 23523, 47046.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
47046 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
47046 is composite. Its prime factorisation is
- 3
The divisors add up to 94104; without 47046 itself that is 47058, so 47046 is abundant (47058 is more than 47046). Euler's totient φ(47046) = 15680 numbers up to 47046 share no factor with it.
- 4
The digits of 47046 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 52 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47046 = 2 \times 3 \times 7841 \]
47046 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 94104 |
| Euler totient φ(n) | 15680 |
| Square | 2213326116 |
| Cube | 104128140453336 |
| Square root | 216.900899 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 52 |
| Scientific notation | 4.7046 × |
47046 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand and forty-six |
| Binary (base 2) | 1011011111000110 |
| Octal (base 8) | 133706 |
| Hexadecimal (base 16) | B7C6 |
| Base 3 | 2101112110 |
| As time | 47046 seconds = 13 h 4 min 6 s |
Is 47046 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (47046 ÷ 2 = 23523) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (47046 ÷ 3 = 15682) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | 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 | Yes (47046 ÷ 6 = 7841) | 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 6) | 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 6) | 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 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 47046 a prime number?
No. 47046 = 2 × 3 × 7841, so it is divisible by 2.
What are the factors of 47046?
1, 2, 3, 6, 7841, 15682, 23523, 47046.
What is 47046 in binary?
1011011111000110 (hexadecimal B7C6, octal 133706).
What is the square root of 47046?
About 216.9009.
Is 47046 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 47046?
It is a composite number with 8 divisors.