81027320575536

Names of 81027320575536

• Cardinal: 81027320575536 can be written as Eighty-one trillion, twenty-seven billion, three hundred twenty million, five hundred seventy-five thousand, five hundred thirty-six.

Scientific notation

• Scientific notation: 8.1027320575536 × 10¹³

Factors of 81027320575536

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 327335697

Divisors of 81027320575536

• Number of divisors d(n): 100
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 191 216 324 382 432 573 648 764 1146 1296 1528 1719 2292 3056 3438 4584 5157 6876 9168 10314 13752 15471 20628 27504 30942 41256 61884 82512 123768 247536 327335501 654671002 982006503 1309342004 1964013006 2618684008 2946019509 3928026012 5237368016 5892039018 7856052024 8838058527 11784078036 15712104048 17676117054 23568156072 26514175581 35352234108 47136312144 53028351162 62521080691 70704468216 106056702324 125042161382 141408936432 187563242073 212113404648 250084322764 375126484146 424226809296 500168645528 562689726219 750252968292 1000337291056 1125379452438 1500505936584 1688069178657 2250758904876 3001011873168 3376138357314 4501517809752 5064207535971 6752276714628 9003035619504 10128415071942 13504553429256 20256830143884 27009106858512 40513660287768 81027320575536
• Sum of all divisors σ(n): 235744409856384
• Sum of proper divisors (its aliquot sum) s(n): 154717089280848
• 81027320575536 is an abundant number, because the sum of its proper divisors (154717089280848) is greater than itself. Its abundance is 73689768705312

Bases of 81027320575536

• Binary: 10010011011000110100100101010001111011000110000₂
• Hexadecimal: 0x49B1A4A8F630
• Base-36: SPZFQLV00

Squares and roots of 81027320575536

• 81027320575536 squared (81027320575536²) is 6565426679650679618281687296
• 81027320575536 cubed (81027320575536³) is 531978932287232515147421671460295899590656
• The square root of 81027320575536 is 9001517.6817876661
• The cube root of 81027320575536 is 43272.3511412043

Scales and comparisons

• 81,027,320,575,536 seconds is equal to 2,576,418 years, 8 weeks, 2 days, 8 hours, 45 minutes, 36 seconds.
• To count from 1 to 81,027,320,575,536 would take you about six million, four hundred forty-one thousand and forty-five 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 81027320575536 cubic inches would be around 3606 feet tall.

Recreational maths with 81027320575536

• 81027320575536 backwards is 63557502372018
• 81027320575536 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81027320575536's digits is 54
• More coming soon!