800 = 2 × 2 × 2 × 2 × 2 × 5 × 5
800 = 12 × 3 × 4 + 567 + 89
800 = 9 + 8 × 76 + 54 × 3 + 21
800 = 0^4 − 1^8 + 2^7 + 3^5 − 4^9 + 5^1 + 6^0 + 7^3 + 8^6 + 9^2
800 = 4^2 + 28^2 = 20^2 + 20^2
800 divides 49^2 - 1.
800 = (1 + 1) × ((1 + 1) × (11 − 1))(1+1)
800 = 2 × (22 − 2)2
800 = 3(3+3) + ((3 + 3)3 − 3)/3
800 = (4 × 4 + 4) × (44 − 4)
= 5 × 5 × ((5 + 5)/5)5 + 5/5
800 = 66 × (6 + 6) + 6 + (6 + 6)/6
800 = (7×7+7/7)×(7+7+(7+7)/7)
800 = 888 − 88
800 = 9 × (99 − 9) − 9 − 9/9
Achilles number - powerful but imperfect
Sum of four consecutive primes.
Number k such that k^8 + 1 is prime
Factors: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800
Eight hundred
Representations, Binary to Hexadecimal:
1100100000_2
1002122_3
30200_4
11200_5
3412_6
2222_7
1440_8
1078_9
668_11
568_12
497_13
412_14
385_15
320_16
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