81827274432

Names of 81827274432

• Cardinal: 81827274432 can be written as Eighty-one billion, eight hundred twenty-seven million, two hundred seventy-four thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 8.1827274432 × 10¹⁰

Factors of 81827274432

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 18529755

Divisors of 81827274432

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 6 8 12 16 23 24 32 46 48 64 69 92 96 138 184 192 276 368 552 736 1104 1472 2208 4416 18529727 37059454 55589181 74118908 111178362 148237816 222356724 296475632 426183721 444713448 592951264 852367442 889426896 1185902528 1278551163 1704734884 1778853792 2557102326 3409469768 3557707584 5114204652 6818939536 10228409304 13637879072 20456818608 27275758144 40913637216 81827274432
• Sum of all divisors σ(n): 225914443776
• Sum of proper divisors (its aliquot sum) s(n): 144087169344
• 81827274432 is an abundant number, because the sum of its proper divisors (144087169344) is greater than itself. Its abundance is 62259894912

Bases of 81827274432

• Binary: 1001100001101010010010001111011000000₂
• Hexadecimal: 0x130D491EC0
• Base-36: 11L9UH1C

Squares and roots of 81827274432

• 81827274432 squared (81827274432²) is 6695702840969840922624
• 81827274432 cubed (81827274432³) is 547891113883161226210938125549568
• The square root of 81827274432 is 286054.6703551613
• The cube root of 81827274432 is 4341.4289226179

Scales and comparisons

• 81,827,274,432 seconds is equal to 2,601 years, 44 weeks, 2 days, 22 hours, 27 minutes, 12 seconds.
• To count from 1 to 81,827,274,432 would take you about five thousand, two hundred 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 81827274432 cubic inches would be around 361.8 feet tall.

Recreational maths with 81827274432

• 81827274432 backwards is 23447272818
• 81827274432 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81827274432's digits is 48
• More coming soon!