The number 49389
49389 is a composite number with 8 divisors. Its prime factorisation is 3 × 101 × 163. Divisors (8): 1, 3, 101, 163, 303, 489, 16463, 49389.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
49389 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
49389 is composite. Its prime factorisation is
- 3
The divisors add up to 66912; without 49389 itself that is 17523, so 49389 is deficient (17523 is less than 49389). Euler's totient φ(49389) = 32400 numbers up to 49389 share no factor with it.
- 4
The digits of 49389 add up to 33, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 52 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49389 = 3 \times 101 \times 163 \]
49389 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 66912 |
| Euler totient φ(n) | 32400 |
| Square | 2439273321 |
| Cube | 120473270050869 |
| Square root | 222.236361 |
| Digit sum / digital root | 33 / 6 |
| Collatz steps to 1 | 52 |
| Scientific notation | 4.9389 × |
49389 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand three hundred and eighty-nine |
| Binary (base 2) | 1100000011101101 |
| Octal (base 8) | 140355 |
| Hexadecimal (base 16) | C0ED |
| Base 3 | 2111202020 |
| As time | 49389 seconds = 13 h 43 min 9 s |
Is 49389 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (49389 ÷ 3 = 16463) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | 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 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 49389 a prime number?
No. 49389 = 3 × 101 × 163, so it is divisible by 3.
What are the factors of 49389?
1, 3, 101, 163, 303, 489, 16463, 49389.
What is 49389 in binary?
1100000011101101 (hexadecimal C0ED, octal 140355).
What is the square root of 49389?
About 222.2364.
Is 49389 divisible by 3?
Yes. Its digits add up to 33, a multiple of 3.
What is special about the number 49389?
It is a composite number with 8 divisors.