The number 25012
25012 is a composite number with 18 divisors. Its prime factorisation is × × 37. Divisors (18): 1, 2, 4, 13, 26, 37, 52, 74, 148, 169, 338, 481, 676, 962, 1924, 6253 … 25012.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
25012 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
25012 is composite. Its prime factorisation is
- 3
The divisors add up to 48678; without 25012 itself that is 23666, so 25012 is deficient (23666 is less than 25012). Euler's totient φ(25012) = 11232 numbers up to 25012 share no factor with it.
- 4
The digits of 25012 add up to 10, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 157 steps to reach 1.
LaTeX source of the formulas on this page
\[ 25012 = 2^{2} \times 13^{2} \times 37 \]25012 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 18 |
| Sum of divisors | 48678 |
| Euler totient φ(n) | 11232 |
| Square | 625600144 |
| Cube | 15647510801728 |
| Square root | 158.151826 (= 26√37) |
| Digit sum / digital root | 10 / 1 |
| Collatz steps to 1 | 157 |
| Scientific notation | 2.5012 × |
25012 in other forms
| Form | Value |
|---|---|
| In words | twenty-five thousand and twelve |
| Binary (base 2) | 110000110110100 |
| Octal (base 8) | 60664 |
| Hexadecimal (base 16) | 61B4 |
| Base 3 | 1021022101 |
| As time | 25012 seconds = 6 h 56 min 52 s |
Is 25012 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (25012 ÷ 2 = 12506) | 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 | Yes (25012 ÷ 4 = 6253) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | 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 4) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 25012 a prime number?
No. 25012 = × × 37, so it is divisible by 2.
What are the factors of 25012?
1, 2, 4, 13, 26, 37, 52, 74, 148, 169, 338, 481, 676, 962, 1924, 6253, 12506, 25012.
What is 25012 in binary?
110000110110100 (hexadecimal 61B4, octal 60664).
What is the square root of 25012?
About 158.1518, exactly 26√37.
Is 25012 divisible by 3?
No. Its digits add up to 10, which is not a multiple of 3.
What is special about the number 25012?
It is a composite number with 18 divisors.