7287 = 1 + 2 + 3 × 45 + 6 × 78 × 9
7287 = 98 + 7 + 6 × (54 + 3) × 21
7287 = 0^7 + 1^9 + 2^8 + 3^5 + 4^6 + 5^0 + 6^3 + 7^4 + 8^2 + 9^1
7287 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, 7, 21, 347, 1041, 2429, 7287
seven thousand, two hundred eighty-seven
Representations, Binary to Hexadecimal:
1110001110111_2
100222220_3
1301313_4
213122_5
53423_6
30150_7
16167_8
10886_9
5525_11
4273_12
3417_13
2927_14
225c_15
1c77_16
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Undergraduate Texts in Mathematics
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