1216 = 2 × 2 × 2 × 2 × 2 × 2 × 19
1216 = 12 × 3 + 45 + 67 + 89
1216 = (9 + 87) × 6 + 5 × 4 × 32 × 1
1216 = 0^6 − 1^9 + 2^7 − 3^8 + 4^1 + 5^5 + 6^0 + 7^3 + 8^4 + 9^2
9-gonal (or enneagonal or nonagonal) numbers: a(n) = n*(7*n-5)/2, n = 19
Number that is the sum of 2 positive cubes
Factors: 1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216
Representations, Binary to Hexadecimal:
10011000000_2
1200001_3
103000_4
14331_5
5344_6
3355_7
2300_8
1601_9
a06_11
854_12
727_13
62c_14
561_15
4c0_16
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