The number 47338
47338 is a composite number with 4 divisors. Its prime factorisation is 2 × 23669. Divisors (4): 1, 2, 23669, 47338.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 47338: a semiprime: 2 × 23669, the product of two primes.
- 2
47338 is composite. Its prime factorisation is
- 3
The divisors add up to 71010; without 47338 itself that is 23672, so 47338 is deficient (23672 is less than 47338). Euler's totient φ(47338) = 23668 numbers up to 47338 share no factor with it.
- 4
The digits of 47338 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 101 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47338 = 2 \times 23669 \]
47338 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 71010 |
| Euler totient φ(n) | 23668 |
| Square | 2240886244 |
| Cube | 106079073018472 |
| Square root | 217.572976 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 101 |
| Scientific notation | 4.7338 × |
47338 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand three hundred and thirty-eight |
| Binary (base 2) | 1011100011101010 |
| Octal (base 8) | 134352 |
| Hexadecimal (base 16) | B8EA |
| Base 3 | 2101221021 |
| As time | 47338 seconds = 13 h 8 min 58 s |
Is 47338 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (47338 ÷ 2 = 23669) | 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 3) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | 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 47338 a prime number?
No. 47338 = 2 × 23669, so it is divisible by 2.
What are the factors of 47338?
1, 2, 23669, 47338.
What is 47338 in binary?
1011100011101010 (hexadecimal B8EA, octal 134352).
What is the square root of 47338?
About 217.5730.
Is 47338 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 47338?
47338 is a semiprime: 2 × 23669, the product of two primes.