347 ( three hundred and forty seven ) is a natural number between 346 and 348 .
- 347 days a year - December 13 (in a leap year - December 12 ).
| 347 | |
|---|---|
| three hundred and forty-seven | |
| ← 345 · 346 · 347 · 348 · 349 → | |
| Factorization | simple |
| Roman notation | CCCXLVII |
| Binary | 101011011 |
| Octal | 533 |
| Hexadecimal | 15B |
Content
In Math
- 347 is an odd three-digit number.
- The sum of the digits of 347 is 14 .
- The product of the digits of this number is 84 .
- The square of this number is 120 409.
- 347 is an evil number
- 347 - insufficient number
- 347 is a prime number [1] .
- 347 is the Friedman number [2] , since 347 = 7 3 + 4.
- 347 is the Chen prime number (347 + 2 = 349, which is a prime number) [3] .
- The number 347 is a prime number that differs by 6 from the prime number 353 [4] .
- 347 is an Eisenstein prime number [5] .
- The number 347 is the largest prime divisor of 1! + 2! + 3! + 4! + 5! + 6! + 7! + 8! + 9! [6] .
In science
- 347 year .
- 347 BC e.
- NGC 347 is a galaxy in the constellation Keith .
In other areas
- 347th Infantry Division
Notes
- ↑ sequence A000040 / b000040.txt in OEIS .
- ↑ sequence A036057 in OEIS .
- ↑ sequence A109611 in OEIS .
- ↑ sequence A023201 in OEIS .
- ↑ sequence A003627 in OEIS .
- ↑ Prime Curious !: 347 .