1990 = 12 × 3 + 4 + 5 × 6 × (7 × 8 + 9)
1990 = 9 + 8 × (7 + 6) + 54 × 3 + 2 × 1
1990 = 0^0 + 1^2 + 2^9 + 3^7 − 4^8 + 5^4 + 6^6 + 7^5 + 8^1 + 9^3
Sphenic number: Product of 3 distinct Primes, (List)
Factors: 1, 2, 5, 10, 199, 398, 995, 1990
Representations, Binary to Hexadecimal:
11111000110_2
2201201_3
133012_4
30430_5
13114_6
5542_7
3706_8
2651_9
154a_11
119a_12
ba1_13
a22_14
8ca_15
7c6_16
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