The number 47222
47222 is a composite number with 8 divisors. Its prime factorisation is 2 × 7 × 3373. Divisors (8): 1, 2, 7, 14, 3373, 6746, 23611, 47222.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
47222 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
47222 is composite. Its prime factorisation is
- 3
The divisors add up to 80976; without 47222 itself that is 33754, so 47222 is deficient (33754 is less than 47222). Euler's totient φ(47222) = 20232 numbers up to 47222 share no factor with it.
- 4
The digits of 47222 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 83 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47222 = 2 \times 7 \times 3373 \]
47222 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 80976 |
| Euler totient φ(n) | 20232 |
| Square | 2229917284 |
| Cube | 105301153985048 |
| Square root | 217.306236 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 83 |
| Scientific notation | 4.7222 × |
47222 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand two hundred and twenty-two |
| Binary (base 2) | 1011100001110110 |
| Octal (base 8) | 134166 |
| Hexadecimal (base 16) | B876 |
| Base 3 | 2101202222 |
| As time | 47222 seconds = 13 h 7 min 2 s |
Is 47222 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (47222 ÷ 2 = 23611) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | 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 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (47222 ÷ 7 = 6746) | 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 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 47222 a prime number?
No. 47222 = 2 × 7 × 3373, so it is divisible by 2.
What are the factors of 47222?
1, 2, 7, 14, 3373, 6746, 23611, 47222.
What is 47222 in binary?
1011100001110110 (hexadecimal B876, octal 134166).
What is the square root of 47222?
About 217.3062.
Is 47222 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 47222?
It is a composite number with 8 divisors.