The number 53979
53979 is a composite number with 8 divisors. Its prime factorisation is 3 × 19 × 947. Divisors (8): 1, 3, 19, 57, 947, 2841, 17993, 53979.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
53979 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
53979 is composite. Its prime factorisation is
- 3
The divisors add up to 75840; without 53979 itself that is 21861, so 53979 is deficient (21861 is less than 53979). Euler's totient φ(53979) = 34056 numbers up to 53979 share no factor with it.
- 4
The digits of 53979 add up to 33, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 215 steps to reach 1.
LaTeX source of the formulas on this page
\[ 53979 = 3 \times 19 \times 947 \]
53979 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 75840 |
| Euler totient φ(n) | 34056 |
| Square | 2913732441 |
| Cube | 157280363432739 |
| Square root | 232.333812 |
| Digit sum / digital root | 33 / 6 |
| Collatz steps to 1 | 215 |
| Scientific notation | 5.3979 × |
53979 in other forms
| Form | Value |
|---|---|
| In words | fifty-three thousand nine hundred and seventy-nine |
| Binary (base 2) | 1101001011011011 |
| Octal (base 8) | 151333 |
| Hexadecimal (base 16) | D2DB |
| Base 3 | 2202001020 |
| As time | 53979 seconds = 14 h 59 min 39 s |
Is 53979 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 (53979 ÷ 3 = 17993) | 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 2) | 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 6) | 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 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 53979 a prime number?
No. 53979 = 3 × 19 × 947, so it is divisible by 3.
What are the factors of 53979?
1, 3, 19, 57, 947, 2841, 17993, 53979.
What is 53979 in binary?
1101001011011011 (hexadecimal D2DB, octal 151333).
What is the square root of 53979?
About 232.3338.
Is 53979 divisible by 3?
Yes. Its digits add up to 33, a multiple of 3.
What is special about the number 53979?
It is a composite number with 8 divisors.