1441 = 1 + 2 × 3 × 4 × 56 + 7 + 89
1441 = 9 × (8 + 7) × 6 + 54 + 3 × 2 × 1
1441 = 0^6 + 1^9 + 2^7 − 3^8 + 4^5 + 5^0 + 6^3 + 7^1 + 8^2 + 9^4
1441 divides 53^5 - 1.
a(n) = n^2 - 3, n = 38
Centered 12-gonal number, or centered dodecagonal number: number of the form 6*k*(k-1) + 1.
Semiprime (Product of 2 Primes)
Factors: 1, 11, 131, 1441
Representations, Binary to Hexadecimal:
10110100001_2
1222101_3
112201_4
21231_5
10401_6
4126_7
2641_8
1871_9
10a0_11
a01_12
86b_13
74d_14
661_15
5a1_16
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Undergraduate Texts in Mathematics
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