The number 71407
71407 is a composite number with 6 divisors. Its prime factorisation is 7 Ć . Divisors (6): 1, 7, 101, 707, 10201, 71407.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
71407 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
71407 is composite. Its prime factorisation is
- 3
The divisors add up to 82424; without 71407 itself that is 11017, so 71407 is deficient (11017 is less than 71407). Euler's totient Ļ(71407) = 60600 numbers up to 71407 share no factor with it.
- 4
The digits of 71407 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 218 steps to reach 1.
LaTeX source of the formulas on this page
\[ 71407 = 7 \times 101^{2} \]71407 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 82424 |
| Euler totient Ļ(n) | 60600 |
| Square | 5098959649 |
| Cube | 364101411656143 |
| Square root | 267.220882 (= 101ā7) |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 218 |
| Scientific notation | 7.1407 Ć |
71407 in other forms
| Form | Value |
|---|---|
| In words | seventy-one thousand four hundred and seven |
| Binary (base 2) | 10001011011101111 |
| Octal (base 8) | 213357 |
| Hexadecimal (base 16) | 116EF |
| Base 3 | 10121221201 |
| As time | 71407 seconds = 19 h 50 min 7 s |
Is 71407 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 1) | 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 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (71407 Ć· 7 = 10201) | 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 7) | 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 7) | 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 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 71407 a prime number?
No. 71407 = 7 Ć , so it is divisible by 7.
What are the factors of 71407?
1, 7, 101, 707, 10201, 71407.
What is 71407 in binary?
10001011011101111 (hexadecimal 116EF, octal 213357).
What is the square root of 71407?
About 267.2209, exactly 101ā7.
Is 71407 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 71407?
It is a composite number with 6 divisors.