The number 73501
73501 is a composite number with 4 divisors. Its prime factorisation is 31 × 2371. Divisors (4): 1, 31, 2371, 73501.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 73501: a semiprime: 31 × 2371, the product of two primes.
- 2
73501 is composite. Its prime factorisation is
- 3
The divisors add up to 75904; without 73501 itself that is 2403, so 73501 is deficient (2403 is less than 73501). Euler's totient φ(73501) = 71100 numbers up to 73501 share no factor with it.
- 4
The digits of 73501 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 63 steps to reach 1.
LaTeX source of the formulas on this page
\[ 73501 = 31 \times 2371 \]
73501 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 75904 |
| Euler totient φ(n) | 71100 |
| Square | 5402397001 |
| Cube | 397081581970501 |
| Square root | 271.110679 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 63 |
| Scientific notation | 7.3501 × |
73501 in other forms
| Form | Value |
|---|---|
| In words | seventy-three thousand five hundred and one |
| Binary (base 2) | 10001111100011101 |
| Octal (base 8) | 217435 |
| Hexadecimal (base 16) | 11F1D |
| Base 3 | 10201211021 |
| As time | 73501 seconds = 20 h 25 min 1 s |
Is 73501 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 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 7) | 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 10) | 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 73501 a prime number?
No. 73501 = 31 × 2371, so it is divisible by 31.
What are the factors of 73501?
1, 31, 2371, 73501.
What is 73501 in binary?
10001111100011101 (hexadecimal 11F1D, octal 217435).
What is the square root of 73501?
About 271.1107.
Is 73501 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 73501?
73501 is a semiprime: 31 × 2371, the product of two primes.