The number 47229
47229 is a composite number with 16 divisors. Its prime factorisation is 3 × 7 × 13 × 173. Divisors (16): 1, 3, 7, 13, 21, 39, 91, 173, 273, 519, 1211, 2249, 3633, 6747, 15743, 47229.
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How to work it out
- 1
47229 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
47229 is composite. Its prime factorisation is
- 3
The divisors add up to 77952; without 47229 itself that is 30723, so 47229 is deficient (30723 is less than 47229). Euler's totient φ(47229) = 24768 numbers up to 47229 share no factor with it.
- 4
The digits of 47229 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 83 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47229 = 3 \times 7 \times 13 \times 173 \]
47229 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 77952 |
| Euler totient φ(n) | 24768 |
| Square | 2230578441 |
| Cube | 105347989189989 |
| Square root | 217.322341 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 83 |
| Scientific notation | 4.7229 × |
47229 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand two hundred and twenty-nine |
| Binary (base 2) | 1011100001111101 |
| Octal (base 8) | 134175 |
| Hexadecimal (base 16) | B87D |
| Base 3 | 2101210020 |
| As time | 47229 seconds = 13 h 7 min 9 s |
Is 47229 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 (47229 ÷ 3 = 15743) | 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 | Yes (47229 ÷ 7 = 6747) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | 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 6) | 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 47229 a prime number?
No. 47229 = 3 × 7 × 13 × 173, so it is divisible by 3.
What are the factors of 47229?
1, 3, 7, 13, 21, 39, 91, 173, 273, 519, 1211, 2249, 3633, 6747, 15743, 47229.
What is 47229 in binary?
1011100001111101 (hexadecimal B87D, octal 134175).
What is the square root of 47229?
About 217.3223.
Is 47229 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 47229?
It is a composite number with 16 divisors.