The number 79983
79983 is a composite number with 6 divisors. Its prime factorisation is × 8887. Divisors (6): 1, 3, 9, 8887, 26661, 79983.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
79983 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
79983 is composite. Its prime factorisation is
- 3
The divisors add up to 115544; without 79983 itself that is 35561, so 79983 is deficient (35561 is less than 79983). Euler's totient φ(79983) = 53316 numbers up to 79983 share no factor with it.
- 4
The digits of 79983 add up to 36, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 68 steps to reach 1.
LaTeX source of the formulas on this page
\[ 79983 = 3^{2} \times 8887 \]79983 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 115544 |
| Euler totient φ(n) | 53316 |
| Square | 6397280289 |
| Cube | 511673669355087 |
| Square root | 282.812659 (= 3√8887) |
| Digit sum / digital root | 36 / 9 |
| Collatz steps to 1 | 68 |
| Scientific notation | 7.9983 × |
79983 in other forms
| Form | Value |
|---|---|
| In words | seventy-nine thousand nine hundred and eighty-three |
| Binary (base 2) | 10011100001101111 |
| Octal (base 8) | 234157 |
| Hexadecimal (base 16) | 1386F |
| Base 3 | 11001201100 |
| As time | 79983 seconds = 22 h 13 min 3 s |
Is 79983 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 (79983 ÷ 3 = 26661) | 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 3) | 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 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | Yes (79983 ÷ 9 = 8887) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | 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 79983 a prime number?
No. 79983 = × 8887, so it is divisible by 3.
What are the factors of 79983?
1, 3, 9, 8887, 26661, 79983.
What is 79983 in binary?
10011100001101111 (hexadecimal 1386F, octal 234157).
What is the square root of 79983?
About 282.8127, exactly 3√8887.
Is 79983 divisible by 3?
Yes. Its digits add up to 36, a multiple of 3.
What is special about the number 79983?
It is a composite number with 6 divisors.