The number 74013
74013 is a composite number with 4 divisors. Its prime factorisation is 3 × 24671. Divisors (4): 1, 3, 24671, 74013.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 74013: a semiprime: 3 × 24671, the product of two primes.
- 2
74013 is composite. Its prime factorisation is
- 3
The divisors add up to 98688; without 74013 itself that is 24675, so 74013 is deficient (24675 is less than 74013). Euler's totient φ(74013) = 49340 numbers up to 74013 share no factor with it.
- 4
The digits of 74013 add up to 15, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 187 steps to reach 1.
LaTeX source of the formulas on this page
\[ 74013 = 3 \times 24671 \]
74013 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 98688 |
| Euler totient φ(n) | 49340 |
| Square | 5477924169 |
| Cube | 405437601520197 |
| Square root | 272.053304 |
| Digit sum / digital root | 15 / 6 |
| Collatz steps to 1 | 187 |
| Scientific notation | 7.4013 × |
74013 in other forms
| Form | Value |
|---|---|
| In words | seventy-four thousand and thirteen |
| Binary (base 2) | 10010000100011101 |
| Octal (base 8) | 220435 |
| Hexadecimal (base 16) | 1211D |
| Base 3 | 10202112020 |
| As time | 74013 seconds = 20 h 33 min 33 s |
Is 74013 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 | Yes (74013 ÷ 3 = 24671) | 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 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | 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 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 74013 a prime number?
No. 74013 = 3 × 24671, so it is divisible by 3.
What are the factors of 74013?
1, 3, 24671, 74013.
What is 74013 in binary?
10010000100011101 (hexadecimal 1211D, octal 220435).
What is the square root of 74013?
About 272.0533.
Is 74013 divisible by 3?
Yes. Its digits add up to 15, a multiple of 3.
What is special about the number 74013?
74013 is a semiprime: 3 × 24671, the product of two primes.