The number 4790
4790 is a composite number with 8 divisors. Its prime factorisation is 2 × 5 × 479. Divisors (8): 1, 2, 5, 10, 479, 958, 2395, 4790.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
4790 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
4790 is composite. Its prime factorisation is
- 3
The divisors add up to 8640; without 4790 itself that is 3850, so 4790 is deficient (3850 is less than 4790). Euler's totient φ(4790) = 1912 numbers up to 4790 share no factor with it.
- 4
The digits of 4790 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 33 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4790 = 2 \times 5 \times 479 \]
4790 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 8640 |
| Euler totient φ(n) | 1912 |
| Square | 22944100 |
| Cube | 109902239000 |
| Square root | 69.209826 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 33 |
| Scientific notation | 4.79 × |
4790 in other forms
| Form | Value |
|---|---|
| In words | four thousand seven hundred and ninety |
| Binary (base 2) | 1001010110110 |
| Octal (base 8) | 11266 |
| Hexadecimal (base 16) | 12B6 |
| Base 3 | 20120102 |
| As time | 4790 seconds = 1 h 19 min 50 s |
Is 4790 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (4790 ÷ 2 = 2395) | 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 | Yes (4790 ÷ 5 = 958) | 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 | No (remainder 2) | 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 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (4790 ÷ 10 = 479) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 4790 a prime number?
No. 4790 = 2 × 5 × 479, so it is divisible by 2.
What are the factors of 4790?
1, 2, 5, 10, 479, 958, 2395, 4790.
What is 4790 in binary?
1001010110110 (hexadecimal 12B6, octal 11266).
What is the square root of 4790?
About 69.2098.
Is 4790 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 4790?
It is a composite number with 8 divisors.