The number 83143
83143 is a composite number with 8 divisors. Its prime factorisation is 29 × 47 × 61. Divisors (8): 1, 29, 47, 61, 1363, 1769, 2867, 83143.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
83143 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
83143 is composite. Its prime factorisation is
- 3
The divisors add up to 89280; without 83143 itself that is 6137, so 83143 is deficient (6137 is less than 83143). Euler's totient φ(83143) = 77280 numbers up to 83143 share no factor with it.
- 4
The digits of 83143 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 112 steps to reach 1.
LaTeX source of the formulas on this page
\[ 83143 = 29 \times 47 \times 61 \]
83143 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 89280 |
| Euler totient φ(n) | 77280 |
| Square | 6912758449 |
| Cube | 574747475725207 |
| Square root | 288.345279 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 112 |
| Scientific notation | 8.3143 × |
83143 in other forms
| Form | Value |
|---|---|
| In words | eighty-three thousand one hundred and forty-three |
| Binary (base 2) | 10100010011000111 |
| Octal (base 8) | 242307 |
| Hexadecimal (base 16) | 144C7 |
| Base 3 | 11020001101 |
| As time | 83143 seconds = 23 h 5 min 43 s |
Is 83143 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 1) | 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 1) | 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 1) | 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 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 83143 a prime number?
No. 83143 = 29 × 47 × 61, so it is divisible by 29.
What are the factors of 83143?
1, 29, 47, 61, 1363, 1769, 2867, 83143.
What is 83143 in binary?
10100010011000111 (hexadecimal 144C7, octal 242307).
What is the square root of 83143?
About 288.3453.
Is 83143 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 83143?
It is a composite number with 8 divisors.