The number 98740
98740 is a composite number with 12 divisors. Its prime factorisation is × 5 × 4937. Divisors (12): 1, 2, 4, 5, 10, 20, 4937, 9874, 19748, 24685, 49370, 98740.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
98740 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
98740 is composite. Its prime factorisation is
- 3
The divisors add up to 207396; without 98740 itself that is 108656, so 98740 is abundant (108656 is more than 98740). Euler's totient φ(98740) = 39488 numbers up to 98740 share no factor with it.
- 4
The digits of 98740 add up to 28, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 265 steps to reach 1.
LaTeX source of the formulas on this page
\[ 98740 = 2^{2} \times 5 \times 4937 \]98740 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 207396 |
| Euler totient φ(n) | 39488 |
| Square | 9749587600 |
| Cube | 962674279624000 |
| Square root | 314.229216 (= 2√24685) |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 265 |
| Scientific notation | 9.874 × |
98740 in other forms
| Form | Value |
|---|---|
| In words | ninety-eight thousand seven hundred and forty |
| Binary (base 2) | 11000000110110100 |
| Octal (base 8) | 300664 |
| Hexadecimal (base 16) | 181B4 |
| Base 3 | 12000110001 |
| As time | 98740 seconds = 27 h 25 min 40 s |
Is 98740 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (98740 ÷ 2 = 49370) | 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 | Yes (98740 ÷ 4 = 24685) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (98740 ÷ 5 = 19748) | 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 5) | 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 4) | 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 | Yes (98740 ÷ 10 = 9874) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 98740 a prime number?
No. 98740 = × 5 × 4937, so it is divisible by 2.
What are the factors of 98740?
1, 2, 4, 5, 10, 20, 4937, 9874, 19748, 24685, 49370, 98740.
What is 98740 in binary?
11000000110110100 (hexadecimal 181B4, octal 300664).
What is the square root of 98740?
About 314.2292, exactly 2√24685.
Is 98740 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 98740?
It is a composite number with 12 divisors.