what is the uniqueness of number 9?
449076
you know... I don't think that's very fair... You asked a question and then answered it. So now I must think of something else that is special about number 9...\n\nYou can multiply by 9 on your fingers and always get the right answer. For example, say you want to multiply 4 and 9. Holding all ten fingers up, put down the fourth finger from the left. Tada! 3 fingers are on the left of the finger you put down, and 6 fingers are on the right. the answer? 36! Just put down the finger corresponding to the number you are multiplying by 9.
10688
Numbers weren't drawn on the 9th but the ones drawn on the 10th were:\n\n3 21 34 42 45     39
838126
Written by Sergei Rachmaninoff (who lived between 1873 and 1943).  Number 9 was composed between 1916 and 1917.  Check out the Pianopedia link below.
631737
9 ... follow the link below for more info ...
495793
10 is the next number in the series,\nI hope that I have answered your queries.\nThe 2 and the 3 misplaced they may seem,\nBut the squares of 4 and 9 are members of this team.\nI hope you found this helpful, along with my explanation,\nI'm truly better with numbers than with my rhyming sensation.
1044971
A billion has 9 zeroes.
164849
it doesnt it is a symbol meaning 10^-9
68128
Mathematically it is 108\nPhysically 9*12\nAlphabetically One Hundred Eight\nAnd philosophically.."Why do we need numbers?"
918131
Nine hundred ninety-nine trillion and one.  :)\n\nBut if you're asking what number comes after nine hundred ninety nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine thousand, nine hundred ninety-nine, I believe the answer is "one quadrillion".
831104
9 obritals:\n\n(3, 0, 0)\n(3, 1, -1)\n(3, 1, 0)\n(3, 1, +1)\n(3, 2, -2)\n(3, 2, -1)\n(3, 2, 0)\n(3, 2, +1)\n(3, 2, +2)
232325
the are 9 1-digit number; 90 2-digits number = 180 digits, we already have 189; 900 3-digit number=2700 digits; we have 2899 digits;\n\n9000 4-digit number= 36000 more digits; total=38,899; \nwe still have 40,000 - 38889 =1,111 digits to go, coming from 5-digit numbers. Dividing by 5, we need 222 5-digit numbers. Startingt from 10000, we are in 10221 and we have 222*5+38889 =39,999. So we need the FIRST digit of the next number (That number being 10,222) So the 40,000 digit of the series is 1.\nVery nice problem. Thanks
817181
The first digit has nine possibilities: 1 thru 9.\nThe second digit can then also be any of nine possibilities:\nanything but whatever the first digit was.\nThen the third digit can be any of the remaining eight\ndigit possibilities, and this leaves seven possibilities for\nthe fourth digit.\nSo the total number of IDs is 9x9x8x7 = 4536.
474508
In the number: 495,703 the value of 9 is 9 X 10,000 = 90,000.\n\nActually IF I recall correctly (been a long time since 3rd grade math) the value is 10,000.\n\nI think this lesson is probably about learning the value placement in the positioning of numbers so that understanding big numbers becomes easier. But the wording of this question to a 3rd grader (AND some other people too) IS not easy to comprehend, so hopefully, I am telling this answer correctly.\n\nSounds like it's time for a parent/teacher conference.
152050
Actually, there are more numbers that do not repeat than numbers that repeat. \n\nAnd pi is one of those numbers that does not repeat.
299241
Presumably it would be a nonillion as this is the pefix that means nine (nonogon is a nine sided object just like octogon is an eight sided object)
887
I don't know about there being 9 but this site should help.
1173891
I tried it 3 times.  It was right all 3 times.\n\nMy numbers were:\n 11 - 2 = 9\n 99 - 18 = 81\n 54 - 9  = 45\n\nNote that all 3 are multiples of 9.  For some reason (I don't know why) doing that math gives you a multiple of 9.\n\nLets try some more\n12-3 = 9 yup\n16-7 = 9 yup\n40-4 = 36 yup\n57 - 12 = 45 yup\n\nweird....