The number 475
475 is a composite number with 6 divisors. Its prime factorisation is Ć 19. Divisors (6): 1, 5, 19, 25, 95, 475.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
475 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
475 is composite. Its prime factorisation is
- 3
The divisors add up to 620; without 475 itself that is 145, so 475 is deficient (145 is less than 475). Euler's totient Ļ(475) = 360 numbers up to 475 share no factor with it.
- 4
The digits of 475 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 27 steps to reach 1.
LaTeX source of the formulas on this page
\[ 475 = 5^{2} \times 19 \]475 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 620 |
| Euler totient Ļ(n) | 360 |
| Square | 225625 |
| Cube | 107171875 |
| Square root | 21.794495 (= 5ā19) |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 27 |
| Scientific notation | 4.75 Ć |
475 in other forms
| Form | Value |
|---|---|
| In words | four hundred and seventy-five |
| Roman numerals | CDLXXV |
| Binary (base 2) | 111011011 |
| Octal (base 8) | 733 |
| Hexadecimal (base 16) | 1DB |
| Base 3 | 122121 |
| As time | 475 seconds = 7 min 55 s |
Is 475 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (475 Ć· 5 = 95) | 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 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 3) | 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 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 475 a prime number?
No. 475 = Ć 19, so it is divisible by 5.
What are the factors of 475?
1, 5, 19, 25, 95, 475.
What is 475 in binary?
111011011 (hexadecimal 1DB, octal 733).
What is the square root of 475?
About 21.7945, exactly 5ā19.
What is 475 in Roman numerals?
CDLXXV.
Is 475 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 475?
It is a composite number with 6 divisors.