The number 74003
74003 is a composite number with 4 divisors. Its prime factorisation is 43 × 1721. Divisors (4): 1, 43, 1721, 74003.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 74003: a semiprime: 43 × 1721, the product of two primes.
- 2
74003 is composite. Its prime factorisation is
- 3
The divisors add up to 75768; without 74003 itself that is 1765, so 74003 is deficient (1765 is less than 74003). Euler's totient φ(74003) = 72240 numbers up to 74003 share no factor with it.
- 4
The digits of 74003 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 143 steps to reach 1.
LaTeX source of the formulas on this page
\[ 74003 = 43 \times 1721 \]
74003 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 75768 |
| Euler totient φ(n) | 72240 |
| Square | 5476444009 |
| Cube | 405273285998027 |
| Square root | 272.034924 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 143 |
| Scientific notation | 7.4003 × |
74003 in other forms
| Form | Value |
|---|---|
| In words | seventy-four thousand and three |
| Binary (base 2) | 10010000100010011 |
| Octal (base 8) | 220423 |
| Hexadecimal (base 16) | 12113 |
| Base 3 | 10202111212 |
| As time | 74003 seconds = 20 h 33 min 23 s |
Is 74003 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 74003 a prime number?
No. 74003 = 43 × 1721, so it is divisible by 43.
What are the factors of 74003?
1, 43, 1721, 74003.
What is 74003 in binary?
10010000100010011 (hexadecimal 12113, octal 220423).
What is the square root of 74003?
About 272.0349.
Is 74003 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 74003?
74003 is a semiprime: 43 × 1721, the product of two primes.