The number 83473
83473 is a composite number with 4 divisors. Its prime factorisation is 13 × 6421. Divisors (4): 1, 13, 6421, 83473.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 83473: a semiprime: 13 × 6421, the product of two primes.
- 2
83473 is composite. Its prime factorisation is
- 3
The divisors add up to 89908; without 83473 itself that is 6435, so 83473 is deficient (6435 is less than 83473). Euler's totient φ(83473) = 77040 numbers up to 83473 share no factor with it.
- 4
The digits of 83473 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 151 steps to reach 1.
LaTeX source of the formulas on this page
\[ 83473 = 13 \times 6421 \]
83473 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 89908 |
| Euler totient φ(n) | 77040 |
| Square | 6967741729 |
| Cube | 581618305344817 |
| Square root | 288.916943 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 151 |
| Scientific notation | 8.3473 × |
83473 in other forms
| Form | Value |
|---|---|
| In words | eighty-three thousand four hundred and seventy-three |
| Binary (base 2) | 10100011000010001 |
| Octal (base 8) | 243021 |
| Hexadecimal (base 16) | 14611 |
| Base 3 | 11020111121 |
| As time | 83473 seconds = 23 h 11 min 13 s |
Is 83473 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 5) | 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 1) | 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 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | 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 83473 a prime number?
No. 83473 = 13 × 6421, so it is divisible by 13.
What are the factors of 83473?
1, 13, 6421, 83473.
What is 83473 in binary?
10100011000010001 (hexadecimal 14611, octal 243021).
What is the square root of 83473?
About 288.9169.
Is 83473 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 83473?
83473 is a semiprime: 13 × 6421, the product of two primes.