1223 is a Prime Number, Prime(200)
1223 = 12 × 34 + 5 + 6 × (7 + 8) × 9
1223 = 987 + 6 + 5 × (43 + 2 + 1)
1223 = 0^5 + 1^6 + 2^8 − 3^9 + 4^7 + 5^3 + 6^2 + 7^1 + 8^4 + 9^0
1223 divides 57^26 - 1.
Sophie Germain prime p (List): 2p+1 is also prime (2447)
1223 cannot be written as a sum of 3 squares. (Integers that are not a sum of three squares)
Factors: 1, 1223
One thousand, two hundred twenty-three
Representations, Binary to Hexadecimal:
10011000111_2
1200022_3
103013_4
14343_5
5355_6
3365_7
2307_8
1608_9
a12_11
85b_12
731_13
635_14
568_15
4c7_16
<--- --->
Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
