This same property can be applied to all numbers from 64 to 69. Ħ9 is equal to 105 octal, while 105 is equal to 69 hexadecimal. The aliquot sum of sixty-nine is 27 within the aliquot sequence (69,27,13,1,0).īecause 69 has an odd number of 1s in its binary representation, it is sometimes called an " odious number."Ħ9 is the only natural number whose square ( 4761) and cube ( 328 509) use every decimal digit from 0–9 exactly once. the third composite number in the 13-aliquot tree.
0 Comments
Leave a Reply. |