The number 55498
55498 is a composite number with 4 divisors. Its prime factorisation is 2 × 27749. Divisors (4): 1, 2, 27749, 55498.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 55498: a semiprime: 2 × 27749, the product of two primes.
- 2
55498 is composite. Its prime factorisation is
- 3
The divisors add up to 83250; without 55498 itself that is 27752, so 55498 is deficient (27752 is less than 55498). Euler's totient φ(55498) = 27748 numbers up to 55498 share no factor with it.
- 4
The digits of 55498 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 184 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55498 = 2 \times 27749 \]
55498 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 83250 |
| Euler totient φ(n) | 27748 |
| Square | 3080028004 |
| Cube | 170935394165992 |
| Square root | 235.580135 |
| Digit sum / digital root | 31 / 4 |
| Collatz steps to 1 | 184 |
| Scientific notation | 5.5498 × |
55498 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand four hundred and ninety-eight |
| Binary (base 2) | 1101100011001010 |
| Octal (base 8) | 154312 |
| Hexadecimal (base 16) | D8CA |
| Base 3 | 2211010111 |
| As time | 55498 seconds = 15 h 24 min 58 s |
Is 55498 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (55498 ÷ 2 = 27749) | 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 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 8) | 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 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55498 a prime number?
No. 55498 = 2 × 27749, so it is divisible by 2.
What are the factors of 55498?
1, 2, 27749, 55498.
What is 55498 in binary?
1101100011001010 (hexadecimal D8CA, octal 154312).
What is the square root of 55498?
About 235.5801.
Is 55498 divisible by 3?
No. Its digits add up to 31, which is not a multiple of 3.
What is special about the number 55498?
55498 is a semiprime: 2 × 27749, the product of two primes.