The number 49949
49949 is a composite number with 4 divisors. Its prime factorisation is 199 × 251. Divisors (4): 1, 199, 251, 49949.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 49949: a semiprime: 199 × 251, the product of two primes.
- 2
49949 is composite. Its prime factorisation is
- 3
The divisors add up to 50400; without 49949 itself that is 451, so 49949 is deficient (451 is less than 49949). Euler's totient φ(49949) = 49500 numbers up to 49949 share no factor with it.
- 4
The digits of 49949 add up to 35, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 88 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49949 = 199 \times 251 \]
49949 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 50400 |
| Euler totient φ(n) | 49500 |
| Square | 2494902601 |
| Cube | 124617890017349 |
| Square root | 223.492729 |
| Digit sum / digital root | 35 / 8 |
| Collatz steps to 1 | 88 |
| Scientific notation | 4.9949 × |
49949 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand nine hundred and forty-nine |
| Binary (base 2) | 1100001100011101 |
| Octal (base 8) | 141435 |
| Hexadecimal (base 16) | C31D |
| Base 3 | 2112111222 |
| As time | 49949 seconds = 13 h 52 min 29 s |
Is 49949 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 4) | 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 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | 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 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 49949 a prime number?
No. 49949 = 199 × 251, so it is divisible by 199.
What are the factors of 49949?
1, 199, 251, 49949.
What is 49949 in binary?
1100001100011101 (hexadecimal C31D, octal 141435).
What is the square root of 49949?
About 223.4927.
Is 49949 divisible by 3?
No. Its digits add up to 35, which is not a multiple of 3.
What is special about the number 49949?
49949 is a semiprime: 199 × 251, the product of two primes.