5013 = 12 + (34 + 5 × 6) × 78 + 9
5013 = (98 + 7 × 65 + 4) × 32 × 1
5013 = 0^8 + 1^9 + 2^7 + 3^6 + 4^4 + 5^5 + 6^2 + 7^0 + 8^1 + 9^3
5013 = 42^2 + 57^2
Number of ordered pairs of integers (x,y) with x^2+y^2 < 40^2
a(n) = n*(31*n-1)/2, n = 18
Factors: 1, 3, 9, 557, 1671, 5013
Five thousand, thirteen
Representations, Binary to Hexadecimal:
1001110010101_2
20212200_3
1032111_4
130023_5
35113_6
20421_7
11625_8
6780_9
3848_11
2a99_12
2388_13
1b81_14
1743_15
1395_16
Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
