The number 79001
79001 is a composite number with 8 divisors. Its prime factorisation is 13 × 59 × 103. Divisors (8): 1, 13, 59, 103, 767, 1339, 6077, 79001.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
79001 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
79001 is composite. Its prime factorisation is
- 3
The divisors add up to 87360; without 79001 itself that is 8359, so 79001 is deficient (8359 is less than 79001). Euler's totient φ(79001) = 70992 numbers up to 79001 share no factor with it.
- 4
The digits of 79001 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 169 steps to reach 1.
LaTeX source of the formulas on this page
\[ 79001 = 13 \times 59 \times 103 \]
79001 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 87360 |
| Euler totient φ(n) | 70992 |
| Square | 6241158001 |
| Cube | 493057723237001 |
| Square root | 281.071165 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 169 |
| Scientific notation | 7.9001 × |
79001 in other forms
| Form | Value |
|---|---|
| In words | seventy-nine thousand and one |
| Binary (base 2) | 10011010010011001 |
| Octal (base 8) | 232231 |
| Hexadecimal (base 16) | 13499 |
| Base 3 | 11000100222 |
| As time | 79001 seconds = 21 h 56 min 41 s |
Is 79001 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 | No (remainder 1) | 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 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 | No (remainder 1) | 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 | No (remainder 1) | 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 79001 a prime number?
No. 79001 = 13 × 59 × 103, so it is divisible by 13.
What are the factors of 79001?
1, 13, 59, 103, 767, 1339, 6077, 79001.
What is 79001 in binary?
10011010010011001 (hexadecimal 13499, octal 232231).
What is the square root of 79001?
About 281.0712.
Is 79001 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 79001?
It is a composite number with 8 divisors.