1415 = 12 × 3 + 4 × 5 × 67 + 8 × 9
1415 = 9 × 8 × 7 + 65 × (4 + 3) × 2 + 1
1415 = 0^2 + 1^8 + 2^7 − 3^9 + 4^5 + 5^6 + 6^3 + 7^1 + 8^4 + 9^0
Centered icosahedral (or cuboctahedral) number, also crystal ball sequence for f.c.c. lattice.
Semiprime (Product of 2 Primes)
Factors: 1, 5, 283, 1415
Representations, Binary to Hexadecimal:
10110000111_2
1221102_3
112013_4
21130_5
10315_6
4061_7
2607_8
1842_9
1077_11
99b_12
84b_13
731_14
645_15
587_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
