The number 47379
47379 is a composite number with 8 divisors. Its prime factorisation is 3 × 17 × 929. Divisors (8): 1, 3, 17, 51, 929, 2787, 15793, 47379.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
47379 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
47379 is composite. Its prime factorisation is
- 3
The divisors add up to 66960; without 47379 itself that is 19581, so 47379 is deficient (19581 is less than 47379). Euler's totient φ(47379) = 29696 numbers up to 47379 share no factor with it.
- 4
The digits of 47379 add up to 30, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 83 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47379 = 3 \times 17 \times 929 \]
47379 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 66960 |
| Euler totient φ(n) | 29696 |
| Square | 2244769641 |
| Cube | 106354940820939 |
| Square root | 217.667177 |
| Digit sum / digital root | 30 / 3 |
| Collatz steps to 1 | 83 |
| Scientific notation | 4.7379 × |
47379 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand three hundred and seventy-nine |
| Binary (base 2) | 1011100100010011 |
| Octal (base 8) | 134423 |
| Hexadecimal (base 16) | B913 |
| Base 3 | 2101222210 |
| As time | 47379 seconds = 13 h 9 min 39 s |
Is 47379 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 (47379 ÷ 3 = 15793) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | 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 | No (remainder 3) | 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 3) | 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 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 47379 a prime number?
No. 47379 = 3 × 17 × 929, so it is divisible by 3.
What are the factors of 47379?
1, 3, 17, 51, 929, 2787, 15793, 47379.
What is 47379 in binary?
1011100100010011 (hexadecimal B913, octal 134423).
What is the square root of 47379?
About 217.6672.
Is 47379 divisible by 3?
Yes. Its digits add up to 30, a multiple of 3.
What is special about the number 47379?
It is a composite number with 8 divisors.