9081 = 12 × (3 + 4) × (5 × 6 + 78) + 9
9081 = 9 × 876 + (54 + 3) × 21
9081 = 0^7 + 1^9 + 2^8 + 3^5 + 4^6 + 5^0 + 6^2 + 7^3 + 8^4 + 9^1
9081 = 45^2 + 84^2
9081 divides 62^16 - 1.
Number which is simultaneously of the form x^2+y^2, x^2+2y^2, x^2+3y^2, x^2+7y^2, all with x>0, y>0
Factors: 1, 3, 9, 1009, 3027, 9081
Nine thousand, eighty-one
Representations, Binary to Hexadecimal:
10001101111001_2
110110100_3
2031321_4
242311_5
110013_6
35322_7
21571_8
13410_9
6906_11
5309_12
4197_13
3449_14
2a56_15
2379_16
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Undergraduate Texts in Mathematics
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