The number 47011
47011 is a composite number with 4 divisors. Its prime factorisation is 53 × 887. Divisors (4): 1, 53, 887, 47011.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 47011: a semiprime: 53 × 887, the product of two primes.
- 2
47011 is composite. Its prime factorisation is
- 3
The divisors add up to 47952; without 47011 itself that is 941, so 47011 is deficient (941 is less than 47011). Euler's totient φ(47011) = 46072 numbers up to 47011 share no factor with it.
- 4
The digits of 47011 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 57 steps to reach 1.
LaTeX source of the formulas on this page
\[ 47011 = 53 \times 887 \]
47011 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 47952 |
| Euler totient φ(n) | 46072 |
| Square | 2210034121 |
| Cube | 103895914062331 |
| Square root | 216.820202 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 57 |
| Scientific notation | 4.7011 × |
47011 in other forms
| Form | Value |
|---|---|
| In words | forty-seven thousand and eleven |
| Binary (base 2) | 1011011110100011 |
| Octal (base 8) | 133643 |
| Hexadecimal (base 16) | B7A3 |
| Base 3 | 2101111011 |
| As time | 47011 seconds = 13 h 3 min 31 s |
Is 47011 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 | No (remainder 1) | 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 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | 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 47011 a prime number?
No. 47011 = 53 × 887, so it is divisible by 53.
What are the factors of 47011?
1, 53, 887, 47011.
What is 47011 in binary?
1011011110100011 (hexadecimal B7A3, octal 133643).
What is the square root of 47011?
About 216.8202.
Is 47011 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 47011?
47011 is a semiprime: 53 × 887, the product of two primes.