The number 48490
48490 is a composite number with 16 divisors. Its prime factorisation is 2 × 5 × 13 × 373. Divisors (16): 1, 2, 5, 10, 13, 26, 65, 130, 373, 746, 1865, 3730, 4849, 9698, 24245, 48490.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
48490 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
48490 is composite. Its prime factorisation is
- 3
The divisors add up to 94248; without 48490 itself that is 45758, so 48490 is deficient (45758 is less than 48490). Euler's totient φ(48490) = 17856 numbers up to 48490 share no factor with it.
- 4
The digits of 48490 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 145 steps to reach 1.
LaTeX source of the formulas on this page
\[ 48490 = 2 \times 5 \times 13 \times 373 \]
48490 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 94248 |
| Euler totient φ(n) | 17856 |
| Square | 2351280100 |
| Cube | 114013572049000 |
| Square root | 220.204450 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 145 |
| Scientific notation | 4.849 × |
48490 in other forms
| Form | Value |
|---|---|
| In words | forty-eight thousand four hundred and ninety |
| Binary (base 2) | 1011110101101010 |
| Octal (base 8) | 136552 |
| Hexadecimal (base 16) | BD6A |
| Base 3 | 2110111221 |
| As time | 48490 seconds = 13 h 28 min 10 s |
Is 48490 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (48490 ÷ 2 = 24245) | 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 | Yes (48490 ÷ 5 = 9698) | 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 1) | 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 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (48490 ÷ 10 = 4849) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | 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 48490 a prime number?
No. 48490 = 2 × 5 × 13 × 373, so it is divisible by 2.
What are the factors of 48490?
1, 2, 5, 10, 13, 26, 65, 130, 373, 746, 1865, 3730, 4849, 9698, 24245, 48490.
What is 48490 in binary?
1011110101101010 (hexadecimal BD6A, octal 136552).
What is the square root of 48490?
About 220.2045.
Is 48490 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 48490?
It is a composite number with 16 divisors.