1803 = 123 + 45 + 6 + 7 + 8 + 9
1803 = 9 × 8 × (7 + 6 + 5 + 4 + 3) + 2 + 1
1803 = 0^7 + 1^8 + 2^2 − 3^9 + 4^5 + 5^6 + 6^1 + 7^0 + 8^4 + 9^3
Number k such that 4*3^k - 1 is prime.
Semiprime (Product of 2 Primes)
Factors: 1, 3, 601, 1803
Representations, Binary to Hexadecimal:
11100001011_2
2110210_3
130023_4
24203_5
12203_6
5154_7
3413_8
2423_9
139a_11
1063_12
a89_13
92b_14
803_15
70b_16
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Undergraduate Texts in Mathematics
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