The number 47413
47413 is a composite number with 4 divisors. Its prime factorisation is 17 × 2789. Divisors (4): 1, 17, 2789, 47413.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 47413: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 17 × 2789, the product of two primes.
- 2
47413 is composite. Its prime factorisation is
- 3
The divisors add up to 50220; without 47413 itself that is 2807, so 47413 is deficient (2807 is less than 47413). Euler's totient φ(47413) = 44608 numbers up to 47413 share no factor with it.
- 4
The digits of 47413 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 39 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47413 = 17 \times 2789 \]
47413 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 50220 |
| Euler totient φ(n) | 44608 |
| Square | 2247992569 |
| Cube | 106584071673997 |
| Square root | 217.745264 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 39 |
| Scientific notation | 4.7413 × |
47413 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand four hundred and thirteen |
| Binary (base 2) | 1011100100110101 |
| Octal (base 8) | 134465 |
| Hexadecimal (base 16) | B935 |
| Base 3 | 2102001001 |
| As time | 47413 seconds = 13 h 10 min 13 s |
Is 47413 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 | No (remainder 3) | 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 2) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | 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 47413 a prime number?
No. 47413 = 17 × 2789, so it is divisible by 17.
What are the factors of 47413?
1, 17, 2789, 47413.
What is 47413 in binary?
1011100100110101 (hexadecimal B935, octal 134465).
What is the square root of 47413?
About 217.7453.
Is 47413 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 47413?
47413 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 17 × 2789, the product of two primes.