The number 47422
47422 is a composite number with 8 divisors. Its prime factorisation is 2 × 131 × 181. Divisors (8): 1, 2, 131, 181, 262, 362, 23711, 47422.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
47422 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
47422 is composite. Its prime factorisation is
- 3
The divisors add up to 72072; without 47422 itself that is 24650, so 47422 is deficient (24650 is less than 47422). Euler's totient φ(47422) = 23400 numbers up to 47422 share no factor with it.
- 4
The digits of 47422 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 176 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47422 = 2 \times 131 \times 181 \]
47422 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 72072 |
| Euler totient φ(n) | 23400 |
| Square | 2248846084 |
| Cube | 106644778995448 |
| Square root | 217.765929 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 176 |
| Scientific notation | 4.7422 × |
47422 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand four hundred and twenty-two |
| Binary (base 2) | 1011100100111110 |
| Octal (base 8) | 134476 |
| Hexadecimal (base 16) | B93E |
| Base 3 | 2102001101 |
| As time | 47422 seconds = 13 h 10 min 22 s |
Is 47422 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (47422 ÷ 2 = 23711) | 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 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 4) | 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 6) | 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 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 47422 a prime number?
No. 47422 = 2 × 131 × 181, so it is divisible by 2.
What are the factors of 47422?
1, 2, 131, 181, 262, 362, 23711, 47422.
What is 47422 in binary?
1011100100111110 (hexadecimal B93E, octal 134476).
What is the square root of 47422?
About 217.7659.
Is 47422 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 47422?
It is a composite number with 8 divisors.