The number 46939
46939 is a composite number with 4 divisors. Its prime factorisation is 73 × 643. Divisors (4): 1, 73, 643, 46939.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 46939: a semiprime: 73 × 643, the product of two primes.
- 2
46939 is composite. Its prime factorisation is
- 3
The divisors add up to 47656; without 46939 itself that is 717, so 46939 is deficient (717 is less than 46939). Euler's totient φ(46939) = 46224 numbers up to 46939 share no factor with it.
- 4
The digits of 46939 add up to 31, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 158 steps to reach 1.
LaTeX source of the formulas on this page
\[ 46939 = 73 \times 643 \]
46939 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 47656 |
| Euler totient φ(n) | 46224 |
| Square | 2203269721 |
| Cube | 103419277434019 |
| Square root | 216.654102 |
| Digit sum / digital root | 31 / 4 |
| Collatz steps to 1 | 158 |
| Scientific notation | 4.6939 × |
46939 in other forms
| Form | Value |
|---|---|
| In words | forty-six thousand nine hundred and thirty-nine |
| Binary (base 2) | 1011011101011011 |
| Octal (base 8) | 133533 |
| Hexadecimal (base 16) | B75B |
| Base 3 | 2101101111 |
| As time | 46939 seconds = 13 h 2 min 19 s |
Is 46939 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 | No (remainder 1) | 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 1) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | 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 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 46939 a prime number?
No. 46939 = 73 × 643, so it is divisible by 73.
What are the factors of 46939?
1, 73, 643, 46939.
What is 46939 in binary?
1011011101011011 (hexadecimal B75B, octal 133533).
What is the square root of 46939?
About 216.6541.
Is 46939 divisible by 3?
No. Its digits add up to 31, which is not a multiple of 3.
What is special about the number 46939?
46939 is a semiprime: 73 × 643, the product of two primes.