The number 4946
4946 is a composite number with 4 divisors. Its prime factorisation is 2 × 2473. Divisors (4): 1, 2, 2473, 4946.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 4946: a semiprime: 2 × 2473, the product of two primes.
- 2
4946 is composite. Its prime factorisation is
- 3
The divisors add up to 7422; without 4946 itself that is 2476, so 4946 is deficient (2476 is less than 4946). Euler's totient φ(4946) = 2472 numbers up to 4946 share no factor with it.
- 4
The digits of 4946 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 121 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4946 = 2 \times 2473 \]
4946 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 7422 |
| Euler totient φ(n) | 2472 |
| Square | 24462916 |
| Cube | 120993582536 |
| Square root | 70.327804 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 121 |
| Scientific notation | 4.946 × |
4946 in other forms
| Form | Value |
|---|---|
| In words | four thousand nine hundred and forty-six |
| Binary (base 2) | 1001101010010 |
| Octal (base 8) | 11522 |
| Hexadecimal (base 16) | 1352 |
| Base 3 | 20210012 |
| As time | 4946 seconds = 1 h 22 min 26 s |
Is 4946 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (4946 ÷ 2 = 2473) | 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 1) | 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 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 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 6) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | 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 4946 a prime number?
No. 4946 = 2 × 2473, so it is divisible by 2.
What are the factors of 4946?
1, 2, 2473, 4946.
What is 4946 in binary?
1001101010010 (hexadecimal 1352, octal 11522).
What is the square root of 4946?
About 70.3278.
Is 4946 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 4946?
4946 is a semiprime: 2 × 2473, the product of two primes.