990908553690

Names of 990908553690

• Cardinal: 990908553690 can be written as Nine hundred ninety billion, nine hundred eight million, five hundred fifty-three thousand, six hundred ninety.

Scientific notation

• Scientific notation: 9.9090855369 × 10¹¹

Factors of 990908553690

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 9560

Divisors of 990908553690

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 121 165 198 242 330 363 495 605 726 990 1089 1210 1815 2178 3630 5445 9539 10890 19078 28617 47695 57234 85851 95390 104929 143085 171702 209858 286170 314787 429255 524645 629574 858510 944361 1049290 1154219 1573935 1888722 2308438 3147870 3462657 4721805 5771095 6925314 9443610 10387971 11542190 17313285 20775942 34626570 51939855 90992521 103879710 181985042 272977563 454962605 545955126 818932689 909925210 1000917731 1364887815 1637865378 2001835462 2729775630 3002753193 4094663445 5004588655 6005506386 8189326890 9008259579 10009177310 11010095041 15013765965 18016519158 22020190082 30027531930 33030285123 45041297895 55050475205 66060570246 90082595790 99090855369 110100950410 165151425615 198181710738 330302851230 495454276845 990908553690
• Sum of all divisors σ(n): 2832166142442
• Sum of proper divisors (its aliquot sum) s(n): 1841257588752
• 990908553690 is an abundant number, because the sum of its proper divisors (1841257588752) is greater than itself. Its abundance is 850349035062

Bases of 990908553690

• Binary: 1110011010110110110000001001100111011010₂
• Hexadecimal: 0xE6B6C099DA
• Base-36: CN7TD9EI

Squares and roots of 990908553690

• 990908553690 squared (990908553690²) is 981899761776007612616100
• 990908553690 cubed (990908553690³) is 972972872810019249159849448208409000
• The square root of 990908553690 is 995443.8978114235
• The cube root of 990908553690 is 9969.6028740617

Scales and comparisons

• 990,908,553,690 seconds is equal to 31,507 years, 43 weeks, 1 minute, 30 seconds.
• To count from 1 to 990,908,553,690 would take you about sixty-three thousand and fifteen years!

  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 990908553690 cubic inches would be around 830.8 feet tall.

Recreational maths with 990908553690

• 990908553690 backwards is 096355809099
• The number of decimal digits it has is: 12
• The sum of 990908553690's digits is 63
• More coming soon!