81996300800

Names of 81996300800

• Cardinal: 81996300800 can be written as Eighty-one billion, nine hundred ninety-six million, three hundred thousand, eight hundred.

Scientific notation

• Scientific notation: 8.19963008 × 10¹⁰

Factors of 81996300800

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2538

Divisors of 81996300800

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 256 320 400 512 640 800 1280 1600 2531 2560 3200 5062 6400 10124 12655 12800 20248 25310 40496 50620 63275 80992 101240 126550 161984 202480 253100 323968 404960 506200 647936 809920 1012400 1295872 1619840 2024800 3239680 4049600 6405961 6479360 8099200 12811922 16198400 25623844 32029805 32396800 51247688 64059610 102495376 128119220 160149025 204990752 256238440 320298050 409981504 512476880 640596100 819963008 1024953760 1281192200 1639926016 2049907520 2562384400 3279852032 4099815040 5124768800 8199630080 10249537600 16399260160 20499075200 40998150400 81996300800
• Sum of all divisors σ(n): 203232538509
• Sum of proper divisors (its aliquot sum) s(n): 121236237709
• 81996300800 is an abundant number, because the sum of its proper divisors (121236237709) is greater than itself. Its abundance is 39239936909

Bases of 81996300800

• Binary: 1001100010111010111000100001000000000₂
• Hexadecimal: 0x13175C4200
• Base-36: 11O2HAM8

Squares and roots of 81996300800

• 81996300800 squared (81996300800²) is 6723393344884080640000
• 81996300800 cubed (81996300800³) is 551293383103833217288896512000000
• The square root of 81996300800 is 286349.9621093043
• The cube root of 81996300800 is 4344.4161550873

Scales and comparisons

• 81,996,300,800 seconds is equal to 2,607 years, 11 weeks, 6 days, 6 hours, 13 minutes, 20 seconds.
• To count from 1 to 81,996,300,800 would take you about five thousand, two hundred fourteen 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 81996300800 cubic inches would be around 362 feet tall.

Recreational maths with 81996300800

• 81996300800 backwards is 00800369918
• The number of decimal digits it has is: 11
• The sum of 81996300800's digits is 44
• More coming soon!