678

678 = 2 × 3 × 113

678 = 12 × 3 + 4 + 5 + 6 + 7 × 89

678 = 9 × 8 × 7 + 6 + 54 × 3 + 2 × 1

678 = 0^4 + 1^8 + 2^6 − 3^9 + 4^7 + 5^5 + 6^0 + 7^2 + 8^1 + 9^3

Number of points on surface of octahedron; also coordination sequence for cubic lattice: a(0) = 1; for n > 0, a(n) = 4n^2 + 2. n=13

Sphenic number: Product of 3 distinct Primes, (List)

Factors: 1, 2, 3, 6, 113, 226, 339, 678

Representations, Binary to Hexadecimal:

22212_4
10203_5
3050_6
1656_7
1246_8
833_9
567_11
486_12
402_13
366_14
303_15
2a6_16

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