4071 = 1 × 23 + 45 + 6 × 7 × 8 × 9
4071 = (9 + 8 + 7 × 6) × (5 + 43 + 21)
4071 = 0^7 + 1^0 + 2^8 − 3^9 + 4^5 + 5^6 + 6^3 + 7^1 + 8^2 + 9^4
4071 divides 58^22 - 1.
a(n) = (n^3 + 2*n)/3, n = 23
Number of different values of i^2+j^2+k^2+l^2 for i,j,k,l in [ 0,n ]. , n = 35
4071 cannot be written as a sum of 3 squares. (Integers that are not a sum of three squares)
Sphenic number: Product of 3 distinct Primes, (List)
Factors: 1, 3, 23, 59, 69, 177, 1357, 4071
Four thousand, seventy-one
Representations, Binary to Hexadecimal:
111111100111_2
12120210_3
333213_4
112241_5
30503_6
14604_7
7747_8
5523_9
3071_11
2433_12
1b12_13
16ab_14
1316_15
fe7_16
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