The number 50979
50979 is a composite number with 4 divisors. Its prime factorisation is 3 × 16993. Divisors (4): 1, 3, 16993, 50979.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 50979: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 3 × 16993, the product of two primes.
- 2
50979 is composite. Its prime factorisation is
- 3
The divisors add up to 67976; without 50979 itself that is 16997, so 50979 is deficient (16997 is less than 50979). Euler's totient φ(50979) = 33984 numbers up to 50979 share no factor with it.
- 4
The digits of 50979 add up to 30, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 83 steps to reach 1.
LaTeX source of the formulas on this page
\[ 50979 = 3 \times 16993 \]
50979 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 67976 |
| Euler totient φ(n) | 33984 |
| Square | 2598858441 |
| Cube | 132487204463739 |
| Square root | 225.785296 |
| Digit sum / digital root | 30 / 3 |
| Collatz steps to 1 | 83 |
| Scientific notation | 5.0979 × |
50979 in other forms
| Form | Value |
|---|---|
| In words | fifty thousand nine hundred and seventy-nine |
| Binary (base 2) | 1100011100100011 |
| Octal (base 8) | 143443 |
| Hexadecimal (base 16) | C723 |
| Base 3 | 2120221010 |
| As time | 50979 seconds = 14 h 9 min 39 s |
Is 50979 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 | Yes (50979 ÷ 3 = 16993) | 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 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 3) | 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 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 50979 a prime number?
No. 50979 = 3 × 16993, so it is divisible by 3.
What are the factors of 50979?
1, 3, 16993, 50979.
What is 50979 in binary?
1100011100100011 (hexadecimal C723, octal 143443).
What is the square root of 50979?
About 225.7853.
Is 50979 divisible by 3?
Yes. Its digits add up to 30, a multiple of 3.
What is special about the number 50979?
50979 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 3 × 16993, the product of two primes.