The number 74402
74402 is a composite number with 4 divisors. Its prime factorisation is 2 × 37201. Divisors (4): 1, 2, 37201, 74402.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 74402: a semiprime: 2 × 37201, the product of two primes.
- 2
74402 is composite. Its prime factorisation is
- 3
The divisors add up to 111606; without 74402 itself that is 37204, so 74402 is deficient (37204 is less than 74402). Euler's totient φ(74402) = 37200 numbers up to 74402 share no factor with it.
- 4
The digits of 74402 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 138 steps to reach 1.
LaTeX source of the formulas on this page
\[ 74402 = 2 \times 37201 \]
74402 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 111606 |
| Euler totient φ(n) | 37200 |
| Square | 5535657604 |
| Cube | 411863997052808 |
| Square root | 272.767300 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 138 |
| Scientific notation | 7.4402 × |
74402 in other forms
| Form | Value |
|---|---|
| In words | seventy-four thousand four hundred and two |
| Binary (base 2) | 10010001010100010 |
| Octal (base 8) | 221242 |
| Hexadecimal (base 16) | 122A2 |
| Base 3 | 10210001122 |
| As time | 74402 seconds = 20 h 40 min 2 s |
Is 74402 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (74402 ÷ 2 = 37201) | 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 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 2) | 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 8) | 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 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 74402 a prime number?
No. 74402 = 2 × 37201, so it is divisible by 2.
What are the factors of 74402?
1, 2, 37201, 74402.
What is 74402 in binary?
10010001010100010 (hexadecimal 122A2, octal 221242).
What is the square root of 74402?
About 272.7673.
Is 74402 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 74402?
74402 is a semiprime: 2 × 37201, the product of two primes.