597 = 1 + 2 + 34 + 56 + 7 × 8 × 9
597 = 9 × 8 × 7 + 65 + 4 + 3 + 21
597 = 0^5 + 1^7 + 2^8 − 3^9 + 4^1 + 5^6 + 6^3 + 7^0 + 8^4 + 9^2
a(n) is the smallest semiprime such that difference between a(n) and next semiprime, b(n), is n, n = 14
Semiprime (Product of 2 Primes)
Factors: 1, 3, 199, 597
Representations, Binary to Hexadecimal:
1001010101_2
211010_3
21111_4
4342_5
2433_6
1512_7
1125_8
733_9
4a3_11
419_12
36c_13
309_14
29c_15
255_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
