2159 = 1 × 2 + 345 × 6 + 78 + 9
2159 = 9 × (8 + 7) × 6 + 5 + 43 × 21
2159 = 0^3 + 1^9 + 2^7 − 3^8 + 4^6 + 5^5 + 6^4 + 7^0 + 8^2 + 9^1
2159 divides 52^9 - 1.
a(n) = n^2 + 3*n - 1, n = 45
2159 cannot be written as a sum of 3 squares. (Integers that are not a sum of three squares)
Semiprime (Product of 2 Primes)
Factors: 1, 17, 127, 2159
Two thousand, one hundred fifty-nine
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2221222_3
201233_4
32114_5
13555_6
6203_7
4157_8
2858_9
1693_11
12bb_12
ca1_13
b03_14
98e_15
86f_16
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