840081385597774408

Names of 840081385597774408

• Cardinal: 840081385597774408 can be written as Eight hundred forty quadrillion, eighty-one trillion, three hundred eighty-five billion, five hundred ninety-seven million, seven hundred seventy-four thousand, four hundred eight.

Scientific notation

• Scientific notation: 8.40081385597774408 × 10¹⁷

Factors of 840081385597774408

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 323718895

Divisors of 840081385597774408

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 11 22 44 88 121 242 484 968 2703461 5406922 10813844 21627688 29738071 59476142 118952284 237904568 321015421 327118781 642030842 654237562 1284061684 1308475124 2568123368 2616950248 3531169631 7062339262 14124678524 28249357048 38842865941 77685731882 155371463764 310742927528 867852671072081 1735705342144162 3471410684288324 6942821368576648 9546379381792891 19092758763585782 38185517527171564 76371035054343128 105010173199721801 210020346399443602 420040692798887204 840081385597774408
• Sum of all divisors σ(n): 1731366724607973180
• Sum of proper divisors (its aliquot sum) s(n): 891285339010198772
• 840081385597774408 is an abundant number, because the sum of its proper divisors (891285339010198772) is greater than itself. Its abundance is 51203953412424364

Bases of 840081385597774408

• Binary: 101110101000100100011001000110111010111110010010101001001000₂
• Hexadecimal: 0xBA89191BAF92A48
• Base-36: 6DRRZWQUB32G

Squares and roots of 840081385597774408

• 840081385597774408 squared (840081385597774408²) is 705736734427876530537724402859750464
• 840081385597774408 cubed (840081385597774408³) is 592876293725419057009603422841999257138153480645325312
• The square root of 840081385597774408 is 916559537.3993848789
• The cube root of 840081385597774408 is 943569.2674875365

Scales and comparisons

• 840,081,385,597,774,408 seconds is equal to 26,711,989,519 years, 34 weeks, 5 days, 10 hours, 13 minutes, 28 seconds.
• To count from 1 to 840,081,385,597,774,408 would take you about eighty billion, one hundred thirty-five million, nine hundred sixty-eight thousand, five hundred fifty-nine 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 840081385597774408 cubic inches would be around 78630.8 feet tall.

Recreational maths with 840081385597774408

• 840081385597774408 backwards is 804477795583180048
• 840081385597774408 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 840081385597774408's digits is 88
• More coming soon!