211 is a Prime Number, Prime(47)
211 = 1 × 2 × 34 + 56 + 78 + 9
211 = 9 × 8 + 76 + 5 × 4 × 3 + 2 + 1
211 = 0^7 + 1^9 − 2^5 − 3^8 + 4^6 + 5^0 + 6^3 + 7^4 + 8^1 + 9^2
211 = (1 + 1) × 111 − 11
211 = 222 − 22/2
211 = (3 + 3)3 − 3 − 3 + 3/3
211 = 44 − 44 − 4/4
211 = 55 + (55 − 5)/(5 × 5 − 5)
211 = 6 × 6 × 6 − 6 + 6/6
211 = (7 + 7) × (7 + 7) + 7 + 7 + 7/7
211 = 8 × (8 + 8 + 8) + 8 + 88/8
211 = 99 + (999 + 9)/9
a(n) = n*(7*n + 11)/2 + 1.
Difference of two positive 5th powers. (3^5 - 2^5)
Number of knapsack partitions of 23
Prime of the form 2*n^2 + 11.
Prime of the form 1 + n + n^2 + n^3 + ... + n^k, n > 1, k > 1, n = 8
The ring of integers of the field Q(sqrt(-211)) has class number 3.
Factors: 1, 211
Two hundred eleven
Representations, Binary to Hexadecimal:
11010011_2
21211_3
3103_4
1321_5
551_6
421_7
323_8
254_9
182_11
157_12
133_13
111_14
e1_15
d3_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
