The number 76040
76040 is a composite number with 16 divisors. Its prime factorisation is × 5 × 1901. Divisors (16): 1, 2, 4, 5, 8, 10, 20, 40, 1901, 3802, 7604, 9505, 15208, 19010, 38020, 76040.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
76040 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
76040 is composite. Its prime factorisation is
- 3
The divisors add up to 171180; without 76040 itself that is 95140, so 76040 is abundant (95140 is more than 76040). Euler's totient φ(76040) = 30400 numbers up to 76040 share no factor with it.
- 4
The digits of 76040 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 125 steps to reach 1.
LaTeX source of the formulas on this page
\[ 76040 = 2^{3} \times 5 \times 1901 \]76040 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 171180 |
| Euler totient φ(n) | 30400 |
| Square | 5782081600 |
| Cube | 439669484864000 |
| Square root | 275.753513 (= 2√19010) |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 125 |
| Scientific notation | 7.604 × |
76040 in other forms
| Form | Value |
|---|---|
| In words | seventy-six thousand and forty |
| Binary (base 2) | 10010100100001000 |
| Octal (base 8) | 224410 |
| Hexadecimal (base 16) | 12908 |
| Base 3 | 10212022022 |
| As time | 76040 seconds = 21 h 7 min 20 s |
Is 76040 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (76040 ÷ 2 = 38020) | 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 | Yes (76040 ÷ 4 = 19010) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | Yes (76040 ÷ 5 = 15208) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 | Yes (76040 ÷ 8 = 9505) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (76040 ÷ 10 = 7604) | 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 | No (remainder 8) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 76040 a prime number?
No. 76040 = × 5 × 1901, so it is divisible by 2.
What are the factors of 76040?
1, 2, 4, 5, 8, 10, 20, 40, 1901, 3802, 7604, 9505, 15208, 19010, 38020, 76040.
What is 76040 in binary?
10010100100001000 (hexadecimal 12908, octal 224410).
What is the square root of 76040?
About 275.7535, exactly 2√19010.
Is 76040 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 76040?
It is a composite number with 16 divisors.