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零二万一千七百二十

כא׳ תשכ

11111001011100011000

1220220112111

3321130120

230143340

33522104

11453530

3713430

f9718

67e60

31ljg

lwd4

100001110101101101000

2, 5, 7, 41, 89

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 89, 140, 164, 178, 205, 280, 287, 328, 356, 410, 445, 574, 623, 712, 820, 890, 1148, 1246, 1435, 1640, 1780, 2296, 2492, 2870, 3115, 3560, 3649, 4984, 5740, 6230, 7298, 11480, 12460, 14596, 18245, 24920, 25543, 29192, 36490, 51086, 72980, 102172, 127715, 145960, 204344, 255430, 510860, 1021720

1699880

1021720 = 2 x 2 x 2 x 5 x 7 x 41 x 89

1021711

1021747