The number 80074
80074 is a composite number with 4 divisors. Its prime factorisation is 2 × 40037. Divisors (4): 1, 2, 40037, 80074.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 80074: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 40037, the product of two primes.
- 2
80074 is composite. Its prime factorisation is
- 3
The divisors add up to 120114; without 80074 itself that is 40040, so 80074 is deficient (40040 is less than 80074). Euler's totient φ(80074) = 40036 numbers up to 80074 share no factor with it.
- 4
The digits of 80074 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 169 steps to reach 1.
LaTeX source of the formulas on this page
\[ 80074 = 2 \times 40037 \]
80074 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 120114 |
| Euler totient φ(n) | 40036 |
| Square | 6411845476 |
| Cube | 513422114645224 |
| Square root | 282.973497 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 169 |
| Scientific notation | 8.0074 × |
80074 in other forms
| Form | Value |
|---|---|
| In words | eighty thousand and seventy-four |
| Binary (base 2) | 10011100011001010 |
| Octal (base 8) | 234312 |
| Hexadecimal (base 16) | 138CA |
| Base 3 | 11001211201 |
| As time | 80074 seconds = 22 h 14 min 34 s |
Is 80074 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (80074 ÷ 2 = 40037) | 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 | No (remainder 2) | 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 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 2) | 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 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 80074 a prime number?
No. 80074 = 2 × 40037, so it is divisible by 2.
What are the factors of 80074?
1, 2, 40037, 80074.
What is 80074 in binary?
10011100011001010 (hexadecimal 138CA, octal 234312).
What is the square root of 80074?
About 282.9735.
Is 80074 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 80074?
80074 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 40037, the product of two primes.