990990

Names of 990990

• Cardinal: 990990 can be written as Nine hundred ninety thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 9.9099 × 10⁵

Factors of 990990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 41

Divisors of 990990

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 13 14 15 18 21 22 26 30 33 35 39 42 45 55 63 65 66 70 77 78 90 91 99 105 110 117 121 126 130 143 154 165 182 195 198 210 231 234 242 273 286 315 330 363 385 390 429 455 462 495 546 585 605 630 693 715 726 770 819 847 858 910 990 1001 1089 1155 1170 1210 1287 1365 1386 1430 1573 1638 1694 1815 2002 2145 2178 2310 2541 2574 2730 3003 3146 3465 3630 4095 4235 4290 4719 5005 5082 5445 6006 6435 6930 7623 7865 8190 8470 9009 9438 10010 10890 11011 12705 12870 14157 15015 15246 15730 18018 22022 23595 25410 28314 30030 33033 38115 45045 47190 55055 66066 70785 76230 90090 99099 110110 141570 165165 198198 330330 495495 990990
• Sum of all divisors σ(n): 3485664
• Sum of proper divisors (its aliquot sum) s(n): 2494674
• 990990 is an abundant number, because the sum of its proper divisors (2494674) is greater than itself. Its abundance is 1503684

Bases of 990990

• Binary: 11110001111100001110₂
• Hexadecimal: 0xF1F0E
• Base-36: L8NI

Squares and roots of 990990

• 990990 squared (990990²) is 982061180100
• 990990 cubed (990990³) is 973212808867299000
• The square root of 990990 is 995.4848065139
• The cube root of 990990 is 99.6987601233

Scales and comparisons

• 990,990 seconds is equal to 1 week, 4 days, 11 hours, 16 minutes, 30 seconds.
• To count from 1 to 990,990 would take you about four days!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 990990 cubic inches would be around 8.3 feet tall.

Recreational maths with 990990

• 990990 backwards is 099099
• The number of decimal digits it has is: 6
• The sum of 990990's digits is 36
• More coming soon!