The number 49421
49421 is a composite number with 4 divisors. Its prime factorisation is 73 × 677. Divisors (4): 1, 73, 677, 49421.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 49421: a semiprime: 73 × 677, the product of two primes.
- 2
49421 is composite. Its prime factorisation is
- 3
The divisors add up to 50172; without 49421 itself that is 751, so 49421 is deficient (751 is less than 49421). Euler's totient φ(49421) = 48672 numbers up to 49421 share no factor with it.
- 4
The digits of 49421 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 114 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49421 = 73 \times 677 \]
49421 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 50172 |
| Euler totient φ(n) | 48672 |
| Square | 2442435241 |
| Cube | 120707592045461 |
| Square root | 222.308344 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 114 |
| Scientific notation | 4.9421 × |
49421 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand four hundred and twenty-one |
| Binary (base 2) | 1100000100001101 |
| Octal (base 8) | 140415 |
| Hexadecimal (base 16) | C10D |
| Base 3 | 2111210102 |
| As time | 49421 seconds = 13 h 43 min 41 s |
Is 49421 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 2) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | 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 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 5) | 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 | No (remainder 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 49421 a prime number?
No. 49421 = 73 × 677, so it is divisible by 73.
What are the factors of 49421?
1, 73, 677, 49421.
What is 49421 in binary?
1100000100001101 (hexadecimal C10D, octal 140415).
What is the square root of 49421?
About 222.3083.
Is 49421 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 49421?
49421 is a semiprime: 73 × 677, the product of two primes.