The number 98842
98842 is a composite number with 8 divisors. Its prime factorisation is 2 × 73 × 677. Divisors (8): 1, 2, 73, 146, 677, 1354, 49421, 98842.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
98842 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
98842 is composite. Its prime factorisation is
- 3
The divisors add up to 150516; without 98842 itself that is 51674, so 98842 is deficient (51674 is less than 98842). Euler's totient φ(98842) = 48672 numbers up to 98842 share no factor with it.
- 4
The digits of 98842 add up to 31, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 115 steps to reach 1.
LaTeX source of the formulas on this page
\[ 98842 = 2 \times 73 \times 677 \]
98842 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 150516 |
| Euler totient φ(n) | 48672 |
| Square | 9769740964 |
| Cube | 965660736363688 |
| Square root | 314.391476 |
| Digit sum / digital root | 31 / 4 |
| Collatz steps to 1 | 115 |
| Scientific notation | 9.8842 × |
98842 in other forms
| Form | Value |
|---|---|
| In words | ninety-eight thousand eight hundred and forty-two |
| Binary (base 2) | 11000001000011010 |
| Octal (base 8) | 301032 |
| Hexadecimal (base 16) | 1821A |
| Base 3 | 12000120211 |
| As time | 98842 seconds = 27 h 27 min 22 s |
Is 98842 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (98842 ÷ 2 = 49421) | 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 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 4) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | 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 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 98842 a prime number?
No. 98842 = 2 × 73 × 677, so it is divisible by 2.
What are the factors of 98842?
1, 2, 73, 146, 677, 1354, 49421, 98842.
What is 98842 in binary?
11000001000011010 (hexadecimal 1821A, octal 301032).
What is the square root of 98842?
About 314.3915.
Is 98842 divisible by 3?
No. Its digits add up to 31, which is not a multiple of 3.
What is special about the number 98842?
It is a composite number with 8 divisors.