The number 28476
28476 is a composite number with 36 divisors. Its prime factorisation is × × 7 × 113. Divisors (36): 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84 … 28476.
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How to work it out
- 1
28476 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
28476 is composite. Its prime factorisation is
- 3
The divisors add up to 82992; without 28476 itself that is 54516, so 28476 is abundant (54516 is more than 28476). Euler's totient φ(28476) = 8064 numbers up to 28476 share no factor with it.
- 4
The digits of 28476 add up to 27, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 51 steps to reach 1.
LaTeX source of the formulas on this page
\[ 28476 = 2^{2} \times 3^{2} \times 7 \times 113 \]28476 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 36 |
| Sum of divisors | 82992 |
| Euler totient φ(n) | 8064 |
| Square | 810882576 |
| Cube | 23090692234176 |
| Square root | 168.748333 (= 6√791) |
| Digit sum / digital root | 27 / 9 |
| Collatz steps to 1 | 51 |
| Scientific notation | 2.8476 × |
28476 in other forms
| Form | Value |
|---|---|
| In words | twenty-eight thousand four hundred and seventy-six |
| Binary (base 2) | 110111100111100 |
| Octal (base 8) | 67474 |
| Hexadecimal (base 16) | 6F3C |
| Base 3 | 1110001200 |
| As time | 28476 seconds = 7 h 54 min 36 s |
Is 28476 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (28476 ÷ 2 = 14238) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (28476 ÷ 3 = 9492) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | Yes (28476 ÷ 4 = 7119) | 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 | Yes (28476 ÷ 6 = 4746) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (28476 ÷ 7 = 4068) | 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 | Yes (28476 ÷ 9 = 3164) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 6) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | Yes (28476 ÷ 12 = 2373) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 28476 a prime number?
No. 28476 = × × 7 × 113, so it is divisible by 2.
What are the factors of 28476?
1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 113, 126, 226, 252, 339, 452, 678, 791, 1017, 1356, 1582, 2034, 2373, 3164, 4068, 4746, 7119, 9492, 14238, 28476.
What is 28476 in binary?
110111100111100 (hexadecimal 6F3C, octal 67474).
What is the square root of 28476?
About 168.7483, exactly 6√791.
Is 28476 divisible by 3?
Yes. Its digits add up to 27, a multiple of 3.
What is special about the number 28476?
It is a composite number with 36 divisors.