The number 49979
49979 is a composite number with 8 divisors. Its prime factorisation is 23 × 41 × 53. Divisors (8): 1, 23, 41, 53, 943, 1219, 2173, 49979.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
49979 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
49979 is composite. Its prime factorisation is
- 3
The divisors add up to 54432; without 49979 itself that is 4453, so 49979 is deficient (4453 is less than 49979). Euler's totient φ(49979) = 45760 numbers up to 49979 share no factor with it.
- 4
The digits of 49979 add up to 38, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 65 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49979 = 23 \times 41 \times 53 \]
49979 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 54432 |
| Euler totient φ(n) | 45760 |
| Square | 2497900441 |
| Cube | 124842566140739 |
| Square root | 223.559835 |
| Digit sum / digital root | 38 / 2 |
| Collatz steps to 1 | 65 |
| Scientific notation | 4.9979 × |
49979 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand nine hundred and seventy-nine |
| Binary (base 2) | 1100001100111011 |
| Octal (base 8) | 141473 |
| Hexadecimal (base 16) | C33B |
| Base 3 | 2112120002 |
| As time | 49979 seconds = 13 h 52 min 59 s |
Is 49979 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 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 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 2) | 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 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 49979 a prime number?
No. 49979 = 23 × 41 × 53, so it is divisible by 23.
What are the factors of 49979?
1, 23, 41, 53, 943, 1219, 2173, 49979.
What is 49979 in binary?
1100001100111011 (hexadecimal C33B, octal 141473).
What is the square root of 49979?
About 223.5598.
Is 49979 divisible by 3?
No. Its digits add up to 38, which is not a multiple of 3.
What is special about the number 49979?
It is a composite number with 8 divisors.