3985 = 1 × 2 × 3 + 4 + 5 × (6 + 789)
3985 = (9 × 8 × 7 + 65) × (4 + 3) + 2 × 1
3985 = 0^7 − 1^8 − 2^9 + 3^6 + 4^4 + 5^5 + 6^2 + 7^3 + 8^1 + 9^0
3985 = 4^2 + 63^2 = 41^2 + 48^2
3985^2 = 504^2 + 3953^2 = 623^2 + 3936^2
a(n) = 15*n^2 + 9*n + 1, n = 16
Number that is the sum of five fourth powers in two or more ways
Semiprime (Product of 2 Primes)
Factors: 1, 5, 797, 3985
Three thousand, nine hundred eighty-five
Representations, Binary to Hexadecimal:
111110010001_2
12110121_3
332101_4
111420_5
30241_6
14422_7
7621_8
5417_9
2aa3_11
2381_12
1a77_13
1649_14
12aa_15
f91_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics

