The number 98998
98998 is a composite number with 4 divisors. Its prime factorisation is 2 × 49499. Divisors (4): 1, 2, 49499, 98998.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 98998: a semiprime: 2 × 49499, the product of two primes.
- 2
98998 is composite. Its prime factorisation is
- 3
The divisors add up to 148500; without 98998 itself that is 49502, so 98998 is deficient (49502 is less than 98998). Euler's totient φ(98998) = 49498 numbers up to 98998 share no factor with it.
- 4
The digits of 98998 add up to 43, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 115 steps to reach 1.
LaTeX source of the formulas on this page
\[ 98998 = 2 \times 49499 \]
98998 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 148500 |
| Euler totient φ(n) | 49498 |
| Square | 9800604004 |
| Cube | 970240195187992 |
| Square root | 314.639476 |
| Digit sum / digital root | 43 / 7 |
| Collatz steps to 1 | 115 |
| Scientific notation | 9.8998 × |
98998 in other forms
| Form | Value |
|---|---|
| In words | ninety-eight thousand nine hundred and ninety-eight |
| Binary (base 2) | 11000001010110110 |
| Octal (base 8) | 301266 |
| Hexadecimal (base 16) | 182B6 |
| Base 3 | 12000210121 |
| As time | 98998 seconds = 27 h 29 min 58 s |
Is 98998 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (98998 ÷ 2 = 49499) | 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 3) | 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 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 7) | 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 9) | 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 98998 a prime number?
No. 98998 = 2 × 49499, so it is divisible by 2.
What are the factors of 98998?
1, 2, 49499, 98998.
What is 98998 in binary?
11000001010110110 (hexadecimal 182B6, octal 301266).
What is the square root of 98998?
About 314.6395.
Is 98998 divisible by 3?
No. Its digits add up to 43, which is not a multiple of 3.
What is special about the number 98998?
98998 is a semiprime: 2 × 49499, the product of two primes.