81180045940008

Names of 81180045940008

• Cardinal: 81180045940008 can be written as Eighty-one trillion, one hundred eighty billion, forty-five million, nine hundred forty thousand and eight.

Scientific notation

• Scientific notation: 8.1180045940008 × 10¹³

Factors of 81180045940008

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 23799

Divisors of 81180045940008

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 12 24 41 82 123 164 246 328 492 984 1019 2038 3057 4076 4421 6114 8152 8842 12228 13263 17684 18313 24456 26526 35368 36626 41779 53052 54939 73252 83558 106104 109878 125337 146504 167116 181261 219756 250674 334232 362522 439512 501348 543783 725044 750833 1002696 1087566 1450088 1501666 2175132 2252499 3003332 4350264 4504998 4504999 6006664 9009996 9009998 13514997 18019992 18019996 18660947 27029994 36039992 37321894 54059988 55982841 74643788 80961773 108119976 111965682 149287576 161923546 184704959 223931364 242885319 323847092 369409918 447862728 485770638 554114877 647694184 738819836 765098827 971541276 1108229754 1477639672 1530197654 1943082552 2216459508 2295296481 3060395308 3319432693 4432919016 4590592962 6120790616 6638865386 9181185924 9958298079 13277730772 18362371848 19916596158 26555461544 39833192316 79666384632 82500046687 165000093374 247500140061 330000186748 495000280122 660000373496 990000560244 1980001120488 3382501914167 6765003828334 10147505742501 13530007656668 20295011485002 27060015313336 40590022970004 81180045940008
• Sum of all divisors σ(n): 208162579363200
• Sum of proper divisors (its aliquot sum) s(n): 126982533423192
• 81180045940008 is an abundant number, because the sum of its proper divisors (126982533423192) is greater than itself. Its abundance is 45802487483184

Bases of 81180045940008

• Binary: 10010011101010100110011110011010001010100101000₂
• Hexadecimal: 0x49D533CD1528
• Base-36: SRXLJCGFC

Squares and roots of 81180045940008

• 81180045940008 squared (81180045940008²) is 6590199858821809364335040064
• 81180045940008 cubed (81180045940008³) is 534992727292988720069511324422175220480512
• The square root of 81180045940008 is 9009996.9999999445
• The cube root of 81180045940008 is 43299.5215559797

Scales and comparisons

• 81,180,045,940,008 seconds is equal to 2,581,274 years, 18 weeks, 3 days, 1 hour, 6 minutes, 48 seconds.
• To count from 1 to 81,180,045,940,008 would take you about six million, four hundred fifty-three thousand, one hundred eighty-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 81180045940008 cubic inches would be around 3608.3 feet tall.

Recreational maths with 81180045940008

• 81180045940008 backwards is 80004954008118
• The number of decimal digits it has is: 14
• The sum of 81180045940008's digits is 48
• More coming soon!