The number 98438
98438 is a composite number with 8 divisors. Its prime factorisation is 2 × 83 × 593. Divisors (8): 1, 2, 83, 166, 593, 1186, 49219, 98438.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
98438 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
98438 is composite. Its prime factorisation is
- 3
The divisors add up to 149688; without 98438 itself that is 51250, so 98438 is deficient (51250 is less than 98438). Euler's totient φ(98438) = 48544 numbers up to 98438 share no factor with it.
- 4
The digits of 98438 add up to 32, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 84 steps to reach 1.
LaTeX source of the formulas on this page
\[ 98438 = 2 \times 83 \times 593 \]
98438 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 149688 |
| Euler totient φ(n) | 48544 |
| Square | 9690039844 |
| Cube | 953868142163672 |
| Square root | 313.748307 |
| Digit sum / digital root | 32 / 5 |
| Collatz steps to 1 | 84 |
| Scientific notation | 9.8438 × |
98438 in other forms
| Form | Value |
|---|---|
| In words | ninety-eight thousand four hundred and thirty-eight |
| Binary (base 2) | 11000000010000110 |
| Octal (base 8) | 300206 |
| Hexadecimal (base 16) | 18086 |
| Base 3 | 12000000212 |
| As time | 98438 seconds = 27 h 20 min 38 s |
Is 98438 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (98438 ÷ 2 = 49219) | 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 3) | 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 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | 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 98438 a prime number?
No. 98438 = 2 × 83 × 593, so it is divisible by 2.
What are the factors of 98438?
1, 2, 83, 166, 593, 1186, 49219, 98438.
What is 98438 in binary?
11000000010000110 (hexadecimal 18086, octal 300206).
What is the square root of 98438?
About 313.7483.
Is 98438 divisible by 3?
No. Its digits add up to 32, which is not a multiple of 3.
What is special about the number 98438?
It is a composite number with 8 divisors.