7185 = (1 × 2 + 34 + 56) × 78 + 9
7185 = 98 × (7 + 65) + 4 × 32 + 1
7185 = 0^6 + 1^8 − 2^9 + 3^7 + 4^5 + 5^0 + 6^2 + 7^3 + 8^4 + 9^1
a(n) = 9^n + 5^n - 1 , n = 4
Sphenic number: Product of 3 distinct Primes, (List)
Factors: 1, 3, 5, 15, 479, 1437, 2395, 7185
Seven thousand, one hundred eighty-five
Representations, Binary to Hexadecimal:
1110000010001_2
100212010_3
1300101_4
212220_5
53133_6
26643_7
16021_8
10763_9
5442_11
41a9_12
3369_13
2893_14
21e0_15
1c11_16
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Undergraduate Texts in Mathematics
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