81667730480400

Names of 81667730480400

• Cardinal: 81667730480400 can be written as Eighty-one trillion, six hundred sixty-seven billion, seven hundred thirty million, four hundred eighty thousand, four hundred.

Scientific notation

• Scientific notation: 8.16677304804 × 10¹³

Factors of 81667730480400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 150627

Divisors of 81667730480400

• Number of divisors d(n): 135
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 144 150 180 200 225 240 300 360 400 450 600 720 900 1200 1800 3600 150617 301234 451851 602468 753085 903702 1204936 1355553 1506170 1807404 2259255 2409872 2711106 3012340 3614808 3765425 4518510 5422212 6024680 6777765 7229616 7530850 9037020 10844424 11296275 12049360 13555530 15061700 18074040 21688848 22592550 27111060 30123400 33888825 36148080 45185100 54222120 60246800 67777650 90370200 108444240 135555300 180740400 271110600 542221200 22685480689 45370961378 68056442067 90741922756 113427403445 136112884134 181483845512 204169326201 226854806890 272225768268 340282210335 362967691024 408338652402 453709613780 544451536536 567137017225 680564420670 816677304804 907419227560 1020846631005 1088903073072 1134274034450 1361128841340 1633354609608 1701411051675 1814838455120 2041693262010 2268548068900 2722257682680 3266709219216 3402822103350 4083386524020 4537096137800 5104233155025 5444515365360 6805644206700 8166773048040 9074192275600 10208466310050 13611288413400 16333546096080 20416932620100 27222576826800 40833865240200 81667730480400
• Sum of all divisors σ(n): 283411591918351
• Sum of proper divisors (its aliquot sum) s(n): 201743861437951
• 81667730480400 is an abundant number, because the sum of its proper divisors (201743861437951) is greater than itself. Its abundance is 120076130957551

Bases of 81667730480400

• Binary: 10010100100011011000000000100001001110100010000₂
• Hexadecimal: 0x4A46C0109D10
• Base-36: SY5MY4O40

Squares and roots of 81667730480400

• 81667730480400 squared (81667730480400²) is 6669618201819255214784160000
• 81667730480400 cubed (81667730480400³) is 544692581713345027836054992339110464000000
• 81667730480400 is a perfect square number. Its square root is 9037020
• The cube root of 81667730480400 is 43386.0549816941

Scales and comparisons

• 81,667,730,480,400 seconds is equal to 2,596,781 years, 11 weeks, 1 day, 1 hour.
• To count from 1 to 81,667,730,480,400 would take you about six million, four hundred ninety-one thousand, nine hundred fifty-three 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 81667730480400 cubic inches would be around 3615.5 feet tall.

Recreational maths with 81667730480400

• 81667730480400 backwards is 00408403776618
• The number of decimal digits it has is: 14
• The sum of 81667730480400's digits is 54
• More coming soon!