The number 70025
70025 is a composite number with 6 divisors. Its prime factorisation is Ć 2801. Divisors (6): 1, 5, 25, 2801, 14005, 70025.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
70025 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
70025 is composite. Its prime factorisation is
- 3
The divisors add up to 86862; without 70025 itself that is 16837, so 70025 is deficient (16837 is less than 70025). Euler's totient Ļ(70025) = 56000 numbers up to 70025 share no factor with it.
- 4
The digits of 70025 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 205 steps to reach 1.
LaTeX source of the formulas on this page
\[ 70025 = 5^{2} \times 2801 \]70025 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 86862 |
| Euler totient Ļ(n) | 56000 |
| Square | 4903500625 |
| Cube | 343367631265625 |
| Square root | 264.622372 (= 5ā2801) |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 205 |
| Scientific notation | 7.0025 Ć |
70025 in other forms
| Form | Value |
|---|---|
| In words | seventy thousand and twenty-five |
| Binary (base 2) | 10001000110001001 |
| Octal (base 8) | 210611 |
| Hexadecimal (base 16) | 11189 |
| Base 3 | 10120001112 |
| As time | 70025 seconds = 19 h 27 min 5 s |
Is 70025 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 2) | 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 | Yes (70025 Ć· 5 = 14005) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 5) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 70025 a prime number?
No. 70025 = Ć 2801, so it is divisible by 5.
What are the factors of 70025?
1, 5, 25, 2801, 14005, 70025.
What is 70025 in binary?
10001000110001001 (hexadecimal 11189, octal 210611).
What is the square root of 70025?
About 264.6224, exactly 5ā2801.
Is 70025 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 70025?
It is a composite number with 6 divisors.