1289

1289 is a Prime Number, Prime(209)

1289 = 12 + 3 × (4 + 56 × 7) + 89

1289 = 98 × (7 + 6) + 5 + 4 + 3 + 2 + 1

1289 = 0^7 − 1^8 + 2^2 − 3^9 + 4^5 + 5^6 + 6^3 + 7^1 + 8^4 + 9^0

1289 = 8^2 + 35^2

a(n) = n^4 - n - 1, n = 6

1289 lesser of a twin prime pair.

Sophie Germain prime p (List): 2p+1 is also prime (2579)

Factors: 1, 1289

One thousand, two hundred eighty-nine

Representations, Binary to Hexadecimal:

Roman: MCCLXXXIX

10100001001_2
1202202_3
110021_4
20124_5
5545_6
3521_7
2411_8
1682_9
a72_11
8b5_12
782_13
681_14
5ae_15
509_16

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