The number 79004
79004 is a composite number with 6 divisors. Its prime factorisation is × 19751. Divisors (6): 1, 2, 4, 19751, 39502, 79004.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
79004 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
79004 is composite. Its prime factorisation is
- 3
The divisors add up to 138264; without 79004 itself that is 59260, so 79004 is deficient (59260 is less than 79004). Euler's totient φ(79004) = 39500 numbers up to 79004 share no factor with it.
- 4
The digits of 79004 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 169 steps to reach 1.
LaTeX source of the formulas on this page
\[ 79004 = 2^{2} \times 19751 \]79004 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 138264 |
| Euler totient φ(n) | 39500 |
| Square | 6241632016 |
| Cube | 493113895792064 |
| Square root | 281.076502 (= 2√19751) |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 169 |
| Scientific notation | 7.9004 × |
79004 in other forms
| Form | Value |
|---|---|
| In words | seventy-nine thousand and four |
| Binary (base 2) | 10011010010011100 |
| Octal (base 8) | 232234 |
| Hexadecimal (base 16) | 1349C |
| Base 3 | 11000101002 |
| As time | 79004 seconds = 21 h 56 min 44 s |
Is 79004 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (79004 ÷ 2 = 39502) | 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 (79004 ÷ 4 = 19751) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | 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 2) | 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 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | 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 79004 a prime number?
No. 79004 = × 19751, so it is divisible by 2.
What are the factors of 79004?
1, 2, 4, 19751, 39502, 79004.
What is 79004 in binary?
10011010010011100 (hexadecimal 1349C, octal 232234).
What is the square root of 79004?
About 281.0765, exactly 2√19751.
Is 79004 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 79004?
It is a composite number with 6 divisors.