The number 48445
48445 is a composite number with 4 divisors. Its prime factorisation is 5 × 9689. Divisors (4): 1, 5, 9689, 48445.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 48445: a semiprime: 5 × 9689, the product of two primes.
- 2
48445 is composite. Its prime factorisation is
- 3
The divisors add up to 58140; without 48445 itself that is 9695, so 48445 is deficient (9695 is less than 48445). Euler's totient φ(48445) = 38752 numbers up to 48445 share no factor with it.
- 4
The digits of 48445 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 96 steps to reach 1.
LaTeX source of the formulas on this page
\[ 48445 = 5 \times 9689 \]
48445 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 58140 |
| Euler totient φ(n) | 38752 |
| Square | 2346918025 |
| Cube | 113696443721125 |
| Square root | 220.102249 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 96 |
| Scientific notation | 4.8445 × |
48445 in other forms
| Form | Value |
|---|---|
| In words | forty-eight thousand four hundred and forty-five |
| Binary (base 2) | 1011110100111101 |
| Octal (base 8) | 136475 |
| Hexadecimal (base 16) | BD3D |
| Base 3 | 2110110021 |
| As time | 48445 seconds = 13 h 27 min 25 s |
Is 48445 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 | No (remainder 1) | 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 | Yes (48445 ÷ 5 = 9689) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 48445 a prime number?
No. 48445 = 5 × 9689, so it is divisible by 5.
What are the factors of 48445?
1, 5, 9689, 48445.
What is 48445 in binary?
1011110100111101 (hexadecimal BD3D, octal 136475).
What is the square root of 48445?
About 220.1022.
Is 48445 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 48445?
48445 is a semiprime: 5 × 9689, the product of two primes.