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

Author

Jaroslav Krizek, Mar 20 2012

Keywords

• nonn
• base

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.

Examples

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

Crossrefs

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

Programs

Mathematica

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

Extensions

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