The number 83042
83042 is a composite number with 4 divisors. Its prime factorisation is 2 × 41521. Divisors (4): 1, 2, 41521, 83042.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 83042: a semiprime: 2 × 41521, the product of two primes.
- 2
83042 is composite. Its prime factorisation is
- 3
The divisors add up to 124566; without 83042 itself that is 41524, so 83042 is deficient (41524 is less than 83042). Euler's totient φ(83042) = 41520 numbers up to 83042 share no factor with it.
- 4
The digits of 83042 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 226 steps to reach 1.
LaTeX source of the formulas on this page
\[ 83042 = 2 \times 41521 \]
83042 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 124566 |
| Euler totient φ(n) | 41520 |
| Square | 6895973764 |
| Cube | 572655453310088 |
| Square root | 288.170089 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 226 |
| Scientific notation | 8.3042 × |
83042 in other forms
| Form | Value |
|---|---|
| In words | eighty-three thousand and forty-two |
| Binary (base 2) | 10100010001100010 |
| Octal (base 8) | 242142 |
| Hexadecimal (base 16) | 14462 |
| Base 3 | 11012220122 |
| As time | 83042 seconds = 23 h 4 min 2 s |
Is 83042 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (83042 ÷ 2 = 41521) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 83042 a prime number?
No. 83042 = 2 × 41521, so it is divisible by 2.
What are the factors of 83042?
1, 2, 41521, 83042.
What is 83042 in binary?
10100010001100010 (hexadecimal 14462, octal 242142).
What is the square root of 83042?
About 288.1701.
Is 83042 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 83042?
83042 is a semiprime: 2 × 41521, the product of two primes.