The number 43501
43501 is a composite number with 4 divisors. Its prime factorisation is 41 × 1061. Divisors (4): 1, 41, 1061, 43501.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 43501: a semiprime: 41 × 1061, the product of two primes.
- 2
43501 is composite. Its prime factorisation is
- 3
The divisors add up to 44604; without 43501 itself that is 1103, so 43501 is deficient (1103 is less than 43501). Euler's totient φ(43501) = 42400 numbers up to 43501 share no factor with it.
- 4
The digits of 43501 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 119 steps to reach 1.
LaTeX source of the formulas on this page
\[ 43501 = 41 \times 1061 \]
43501 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 44604 |
| Euler totient φ(n) | 42400 |
| Square | 1892337001 |
| Cube | 82318551880501 |
| Square root | 208.568933 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 119 |
| Scientific notation | 4.3501 × |
43501 in other forms
| Form | Value |
|---|---|
| In words | forty-three thousand five hundred and one |
| Binary (base 2) | 1010100111101101 |
| Octal (base 8) | 124755 |
| Hexadecimal (base 16) | A9ED |
| Base 3 | 2012200011 |
| As time | 43501 seconds = 12 h 5 min 1 s |
Is 43501 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 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 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 5) | 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 7) | 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 43501 a prime number?
No. 43501 = 41 × 1061, so it is divisible by 41.
What are the factors of 43501?
1, 41, 1061, 43501.
What is 43501 in binary?
1010100111101101 (hexadecimal A9ED, octal 124755).
What is the square root of 43501?
About 208.5689.
Is 43501 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 43501?
43501 is a semiprime: 41 × 1061, the product of two primes.