81743948208

Names of 81743948208

• Cardinal: 81743948208 can be written as Eighty-one billion, seven hundred forty-three million, nine hundred forty-eight thousand, two hundred eight.

Scientific notation

• Scientific notation: 8.1743948208 × 10¹⁰

Factors of 81743948208

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 43666657

Divisors of 81743948208

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 234 312 468 624 936 1872 43666639 87333278 130999917 174666556 261999834 349333112 392999751 523999668 567666307 698666224 785999502 1047999336 1135332614 1571999004 1702998921 2095998672 2270665228 3143998008 3405997842 4541330456 5108996763 6287996016 6811995684 9082660912 10217993526 13623991368 20435987052 27247982736 40871974104 81743948208
• Sum of all divisors σ(n): 246367182880
• Sum of proper divisors (its aliquot sum) s(n): 164623234672
• 81743948208 is an abundant number, because the sum of its proper divisors (164623234672) is greater than itself. Its abundance is 82879286464

Bases of 81743948208

• Binary: 1001100001000010100011010100110110000₂
• Hexadecimal: 0x130851A9B0
• Base-36: 11JW8I40

Squares and roots of 81743948208

• 81743948208 squared (81743948208²) is 6682073068632186411264
• 81743948208 cubed (81743948208³) is 546219034844341075404165803814912
• The square root of 81743948208 is 285908.9858818711
• The cube root of 81743948208 is 4339.9547697157

Scales and comparisons

• 81,743,948,208 seconds is equal to 2,599 years, 10 weeks, 4 days, 12 hours, 16 minutes, 48 seconds.
• To count from 1 to 81,743,948,208 would take you about five thousand, one 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 81743948208 cubic inches would be around 361.7 feet tall.

Recreational maths with 81743948208

• 81743948208 backwards is 80284934718
• The number of decimal digits it has is: 11
• The sum of 81743948208's digits is 54
• More coming soon!