990643265625

Names of 990643265625

• Cardinal: 990643265625 can be written as Nine hundred ninety billion, six hundred forty-three million, two hundred sixty-five thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 9.90643265625 × 10¹¹

Factors of 990643265625

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 281

Divisors of 990643265625

• Number of divisors d(n): 168
• Complete list of divisors:
  1 3 5 13 15 25 31 39 65 75 93 125 155 195 229 325 375 403 465 625 687 775 975 1145 1209 1625 1875 2015 2325 2977 3125 3435 3875 4875 5725 6045 7099 8125 8931 9375 10075 11625 14885 15625 17175 19375 21297 24375 28625 30225 35495 40625 44655 46875 50375 52441 58125 74425 85875 92287 96875 106485 121875 143125 151125 157323 177475 203125 223275 251875 262205 276861 290625 372125 429375 461435 484375 532425 609375 681733 715625 755625 786615 887375 1116375 1259375 1311025 1384305 1453125 1625671 1860625 2045199 2146875 2307175 2662125 3408665 3578125 3778125 3933075 4436875 4877013 5581875 6296875 6555125 6921525 8128355 9303125 10225995 10734375 11535875 13310625 17043325 18890625 19665375 21133723 22184375 24385065 27909375 32775625 34607625 40641775 46515625 51129975 57679375 63401169 66553125 85216625 98326875 105668615 110921875 121925325 139546875 163878125 173038125 203208875 255649875 288396875 317005845 332765625 426083125 491634375 528343075 609626625 819390625 865190625 1016044375 1278249375 1441984375 1585029225 2130415625 2458171875 2641715375 3048133125 4325953125 5080221875 6391246875 7925146125 10652078125 13208576875 15240665625 25401109375 31956234375 39625730625 66042884375 76203328125 198128653125 330214421875 990643265625
• Sum of all divisors σ(n): 1843461403392
• Sum of proper divisors (its aliquot sum) s(n): 852818137767
• 990643265625 is a deficient number, because the sum of its proper divisors (852818137767) is less than itself. Its deficiency is 137825127858

Bases of 990643265625

• Binary: 1110011010100110111100001010000001011001₂
• Hexadecimal: 0xE6A6F0A059
• Base-36: CN3FF7TL

Squares and roots of 990643265625

• 990643265625 squared (990643265625²) is 981374079728164306640625
• 990643265625 cubed (990643265625³) is 972191623141637801017032623291015625
• The square root of 990643265625 is 995310.6377533601
• The cube root of 990643265625 is 9968.7131004947

Scales and comparisons

• 990,643,265,625 seconds is equal to 31,499 years, 20 weeks, 2 days, 12 hours, 53 minutes, 45 seconds.
• To count from 1 to 990,643,265,625 would take you about sixty-two thousand, nine hundred ninety-eight 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 990643265625 cubic inches would be around 830.7 feet tall.

Recreational maths with 990643265625

• 990643265625 backwards is 526562346099
• The number of decimal digits it has is: 12
• The sum of 990643265625's digits is 57
• More coming soon!