A209932 Numbers n such that smallest digit of all divisors of n is 0.

10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 212, 214, 216, 218, 220, 230, 240, 250, 260, 270, 280, 290, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 312, 315, 318, 320, 321, 324, 327, 330, 340, 350, 360, 370, 380, 390, 400

Offset

1,1

Comments

Also numbers n such that smallest digit of concatenation of all divisors of n (A037278 or A176558) is 0.

Sequence is not the same as A011540, first deviation is at a(41): A011540(41) = 220, a(41) = 214.

Links

Table of n, a(n) for n=1..77.

Example

Number 214 is in sequence because smallest digit of all divisors of 214 (1, 2, 107, 214) is 0.

Mathematica

Select[Range[400], Min[Flatten[IntegerDigits/@Divisors[#]]]==0&] (* Harvey P. Dale, Dec 03 2021 *)

Crossrefs

Cf. A209929 (smallest digit of all divisors of n), complement of A209931.

Sequence in context: A156819 A139079 A360443 * A011540 A098394 A057169

Adjacent sequences: A209929 A209930 A209931 * A209933 A209934 A209935

Keyword

nonn,base

Author

Jaroslav Krizek, Mar 20 2012

Extensions

Corrected and extended by Harvey P. Dale, Dec 03 2021

Status

approved