The number 74122
74122 is a composite number with 4 divisors. Its prime factorisation is 2 × 37061. Divisors (4): 1, 2, 37061, 74122.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 74122: a semiprime: 2 × 37061, the product of two primes.
- 2
74122 is composite. Its prime factorisation is
- 3
The divisors add up to 111186; without 74122 itself that is 37064, so 74122 is deficient (37064 is less than 74122). Euler's totient φ(74122) = 37060 numbers up to 74122 share no factor with it.
- 4
The digits of 74122 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 112 steps to reach 1.
LaTeX source of the formulas on this page
\[ 74122 = 2 \times 37061 \]
74122 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 111186 |
| Euler totient φ(n) | 37060 |
| Square | 5494070884 |
| Cube | 407231522063848 |
| Square root | 272.253558 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 112 |
| Scientific notation | 7.4122 × |
74122 in other forms
| Form | Value |
|---|---|
| In words | seventy-four thousand one hundred and twenty-two |
| Binary (base 2) | 10010000110001010 |
| Octal (base 8) | 220612 |
| Hexadecimal (base 16) | 1218A |
| Base 3 | 10202200021 |
| As time | 74122 seconds = 20 h 35 min 22 s |
Is 74122 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (74122 ÷ 2 = 37061) | 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 2) | 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 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | 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 74122 a prime number?
No. 74122 = 2 × 37061, so it is divisible by 2.
What are the factors of 74122?
1, 2, 37061, 74122.
What is 74122 in binary?
10010000110001010 (hexadecimal 1218A, octal 220612).
What is the square root of 74122?
About 272.2536.
Is 74122 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 74122?
74122 is a semiprime: 2 × 37061, the product of two primes.