The number 42477
42477 is a composite number with 4 divisors. Its prime factorisation is 3 × 14159. Divisors (4): 1, 3, 14159, 42477.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 42477: a semiprime: 3 × 14159, the product of two primes.
- 2
42477 is composite. Its prime factorisation is
- 3
The divisors add up to 56640; without 42477 itself that is 14163, so 42477 is deficient (14163 is less than 42477). Euler's totient φ(42477) = 28316 numbers up to 42477 share no factor with it.
- 4
The digits of 42477 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 101 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42477 = 3 \times 14159 \]
42477 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 56640 |
| Euler totient φ(n) | 28316 |
| Square | 1804295529 |
| Cube | 76641061185333 |
| Square root | 206.099491 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 101 |
| Scientific notation | 4.2477 × |
42477 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand four hundred and seventy-seven |
| Binary (base 2) | 1010010111101101 |
| Octal (base 8) | 122755 |
| Hexadecimal (base 16) | A5ED |
| Base 3 | 2011021020 |
| As time | 42477 seconds = 11 h 47 min 57 s |
Is 42477 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 (42477 ÷ 3 = 14159) | 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 2) | 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 1) | 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 6) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | 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 42477 a prime number?
No. 42477 = 3 × 14159, so it is divisible by 3.
What are the factors of 42477?
1, 3, 14159, 42477.
What is 42477 in binary?
1010010111101101 (hexadecimal A5ED, octal 122755).
What is the square root of 42477?
About 206.0995.
Is 42477 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 42477?
42477 is a semiprime: 3 × 14159, the product of two primes.