The number 39550
39550 is a composite number with 24 divisors. Its prime factorisation is 2 × × 7 × 113. Divisors (24): 1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 113, 175, 226, 350, 565, 791 … 39550.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
39550 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
39550 is composite. Its prime factorisation is
- 3
The divisors add up to 84816; without 39550 itself that is 45266, so 39550 is abundant (45266 is more than 39550). Euler's totient φ(39550) = 13440 numbers up to 39550 share no factor with it.
- 4
The digits of 39550 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 243 steps to reach 1.
LaTeX source of the formulas on this page
\[ 39550 = 2 \times 5^{2} \times 7 \times 113 \]39550 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 24 |
| Sum of divisors | 84816 |
| Euler totient φ(n) | 13440 |
| Square | 1564202500 |
| Cube | 61864208875000 |
| Square root | 198.871818 (= 5√1582) |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 243 |
| Scientific notation | 3.955 × |
39550 in other forms
| Form | Value |
|---|---|
| In words | thirty-nine thousand five hundred and fifty |
| Binary (base 2) | 1001101001111110 |
| Octal (base 8) | 115176 |
| Hexadecimal (base 16) | 9A7E |
| Base 3 | 2000020211 |
| As time | 39550 seconds = 10 h 59 min 10 s |
Is 39550 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (39550 ÷ 2 = 19775) | 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 (39550 ÷ 5 = 7910) | 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 | Yes (39550 ÷ 7 = 5650) | 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 6) | 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 | Yes (39550 ÷ 10 = 3955) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | 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 39550 a prime number?
No. 39550 = 2 × × 7 × 113, so it is divisible by 2.
What are the factors of 39550?
1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 113, 175, 226, 350, 565, 791, 1130, 1582, 2825, 3955, 5650, 7910, 19775, 39550.
What is 39550 in binary?
1001101001111110 (hexadecimal 9A7E, octal 115176).
What is the square root of 39550?
About 198.8718, exactly 5√1582.
Is 39550 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 39550?
It is a composite number with 24 divisors.