225 = 1 + 23 + 45 + 67 + 89
225 = 98 + 76 + 5 + 43 + 2 + 1
225 = 0^5 + 1^7 − 2^9 − 3^8 + 4^6 + 5^0 + 6^1 + 7^4 + 8^2 + 9^3
225 = 15^2
225 = 9^2 + 12^2
225 divides 26^2 - 1.
225 = (1 + 1) × (111 + 1) + 1
225 , Sum of first n cubes
Number k such that k^2 + 2 is prime (50627)
Factors: 1, 3, 5, 9, 15, 25, 45, 75, 225
Two hundred twenty-five
Representations, Binary to Hexadecimal:
11100001_2
22100_3
3201_4
1400_5
1013_6
441_7
341_8
270_9
195_11
169_12
144_13
121_14
100_15
e1_16
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