The number 48478
48478 is a composite number with 4 divisors. Its prime factorisation is 2 × 24239. Divisors (4): 1, 2, 24239, 48478.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 48478: a semiprime: 2 × 24239, the product of two primes.
- 2
48478 is composite. Its prime factorisation is
- 3
The divisors add up to 72720; without 48478 itself that is 24242, so 48478 is deficient (24242 is less than 48478). Euler's totient φ(48478) = 24238 numbers up to 48478 share no factor with it.
- 4
The digits of 48478 add up to 31, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 189 steps to reach 1.
LaTeX source of the formulas on this page
\[ 48478 = 2 \times 24239 \]
48478 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 72720 |
| Euler totient φ(n) | 24238 |
| Square | 2350116484 |
| Cube | 113928946911352 |
| Square root | 220.177201 |
| Digit sum / digital root | 31 / 4 |
| Collatz steps to 1 | 189 |
| Scientific notation | 4.8478 × |
48478 in other forms
| Form | Value |
|---|---|
| In words | forty-eight thousand four hundred and seventy-eight |
| Binary (base 2) | 1011110101011110 |
| Octal (base 8) | 136536 |
| Hexadecimal (base 16) | BD5E |
| Base 3 | 2110111111 |
| As time | 48478 seconds = 13 h 27 min 58 s |
Is 48478 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (48478 ÷ 2 = 24239) | 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 | No (remainder 3) | 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 3) | 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 | No (remainder 8) | 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 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 48478 a prime number?
No. 48478 = 2 × 24239, so it is divisible by 2.
What are the factors of 48478?
1, 2, 24239, 48478.
What is 48478 in binary?
1011110101011110 (hexadecimal BD5E, octal 136536).
What is the square root of 48478?
About 220.1772.
Is 48478 divisible by 3?
No. Its digits add up to 31, which is not a multiple of 3.
What is special about the number 48478?
48478 is a semiprime: 2 × 24239, the product of two primes.