81367979126980

Names of 81367979126980

• Cardinal: 81367979126980 can be written as Eighty-one trillion, three hundred sixty-seven billion, nine hundred seventy-nine million, one hundred twenty-six thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 8.136797912698 × 10¹³

Factors of 81367979126980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 44707680866

Divisors of 81367979126980

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 44707680839 89415361678 178830723356 223538404195 312953765873 447076808390 581199850907 625907531746 894153616780 1162399701814 1251815063492 1564768829365 2324799403628 2905999254535 3129537658730 4068398956349 5811998509070 6259075317460 8136797912698 11623997018140 16273595825396 20341994781745 40683989563490 81367979126980
• Sum of all divisors σ(n): 210304930671360
• Sum of proper divisors (its aliquot sum) s(n): 128936951544380
• 81367979126980 is an abundant number, because the sum of its proper divisors (128936951544380) is greater than itself. Its abundance is 47568972417400

Bases of 81367979126980

• Binary: 10010100000000011110101011111011111000011000100₂
• Hexadecimal: 0x4A00F57DF0C4
• Base-36: SUBXLWVK4

Squares and roots of 81367979126980

• 81367979126980 squared (81367979126980²) is 6620748027208652962963920400
• 81367979126980 cubed (81367979126980³) is 538716887282907687403690806102030212392000
• The square root of 81367979126980 is 9020420.1192062003
• The cube root of 81367979126980 is 43332.9088480999

Scales and comparisons

• 81,367,979,126,980 seconds is equal to 2,587,250 years, 2 weeks, 3 days, 16 hours, 9 minutes, 40 seconds.
• To count from 1 to 81,367,979,126,980 would take you about six million, four hundred sixty-eight thousand, one hundred twenty-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 81367979126980 cubic inches would be around 3611.1 feet tall.

Recreational maths with 81367979126980

• 81367979126980 backwards is 08962197976318
• The number of decimal digits it has is: 14
• The sum of 81367979126980's digits is 76
• More coming soon!