Oh, dude, you're asking me to count digits now? Okay, let's see. In 50,000, the nine-digit number is 000050000. And in 3,000,000, the nine-digit number is 000300000. Like, who knew counting zeros could be so thrilling, right?
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This relates to the PRODUCT of the digits forming the number. 50000 expressed in prime factors is, 24x 55. The 9 digit number is thus 222255555 but the individual digits can be placed in any order, for instance 522555225. 3000000 is similarly 26 x 3 x 56. Altogether this involves 13 numbers but by combining the smaller primes this can be reduced to 9 digits. 23 = 8 ; 22 = 4 : 2 x 3 = 6 The number can be 846555555, but as above, the individual digits can be placed in any order.
Nine of them.
11112
There are nine of them. They are:108117126135144153162171180
no, only single digit numbers are 8,3,1, and 0