676

676 = 2 × 2 × 13 × 13

676 = 1 + 2 + 34 + 567 + 8 × 9

676 = 9 + 8 × 76 + 54 + 3 + 2 × 1

676 = 0^4 + 1^8 + 2^6 − 3^9 + 4^7 + 5^5 + 6^1 + 7^2 + 8^0 + 9^3

a(n) = n^2 written backwards (676 = 26²)

Undulating square number

Factors: 1, 2, 4, 13, 26, 52, 169, 338, 676

Representations, Binary to Hexadecimal:

1010100100_2
221001_3
22210_4
10201_5
3044_6
1654_7
1244_8
831_9
565_11
484_12
400_13
364_14
301_15
2a4_16

<--- --->