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A032571 Numbers k whose decimal representation, read as a base-20 value and divided by k, yields an integer. 1

%I #8 Oct 25 2019 17:44:06

%S 1,2,3,4,5,6,7,8,9,10,20,30,40,50,60,70,80,90,100,195,200,300,400,500,

%T 600,700,800,900,1000,1280,1320,1898,1948,1950,2000,2640,3000,3960,

%U 4000,5000,6000,7000,8000,9000,10000,12800,13200,15545,16000

%N Numbers k whose decimal representation, read as a base-20 value and divided by k, yields an integer.

%C Original name: Base 20 value of decimal denominator divided by this decimal value (n) is an integer.

%e 195 is a term: 195_20 = 585 = 195*3. - _Jon E. Schoenfield_, Oct 25 2019

%Y Cf. A032572. See also A032563 for explanation.

%K nonn,base

%O 1,2

%A _Patrick De Geest_, Apr 15 1998

%E Offset changed and Name edited by _Jon E. Schoenfield_, Oct 25 2019

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Last modified April 25 10:43 EDT 2024. Contains 371967 sequences. (Running on oeis4.)