The number 49209
49209 is a composite number with 8 divisors. Its prime factorisation is 3 × 47 × 349. Divisors (8): 1, 3, 47, 141, 349, 1047, 16403, 49209.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
49209 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
49209 is composite. Its prime factorisation is
- 3
The divisors add up to 67200; without 49209 itself that is 17991, so 49209 is deficient (17991 is less than 49209). Euler's totient φ(49209) = 32016 numbers up to 49209 share no factor with it.
- 4
The digits of 49209 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 233 steps to reach 1.
LaTeX source of the formulas on this page
\[ 49209 = 3 \times 47 \times 349 \]
49209 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 67200 |
| Euler totient φ(n) | 32016 |
| Square | 2421525681 |
| Cube | 119160857236329 |
| Square root | 221.831017 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 233 |
| Scientific notation | 4.9209 × |
49209 in other forms
| Form | Value |
|---|---|
| In words | forty-nine thousand two hundred and nine |
| Binary (base 2) | 1100000000111001 |
| Octal (base 8) | 140071 |
| Hexadecimal (base 16) | C039 |
| Base 3 | 2111111120 |
| As time | 49209 seconds = 13 h 40 min 9 s |
Is 49209 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 (49209 ÷ 3 = 16403) | 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 6) | 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 1) | 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 6) | 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 49209 a prime number?
No. 49209 = 3 × 47 × 349, so it is divisible by 3.
What are the factors of 49209?
1, 3, 47, 141, 349, 1047, 16403, 49209.
What is 49209 in binary?
1100000000111001 (hexadecimal C039, octal 140071).
What is the square root of 49209?
About 221.8310.
Is 49209 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 49209?
It is a composite number with 8 divisors.