640427996587671

Names of 640427996587671

• Cardinal: 640427996587671 can be written as Six hundred forty trillion, four hundred twenty-seven billion, nine hundred ninety-six million, five hundred eighty-seven thousand, six hundred seventy-one.

Scientific notation

• Scientific notation: 6.40427996587671 × 10¹⁴

Factors of 640427996587671

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 749

Divisors of 640427996587671

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 19 27 57 81 171 243 361 513 727 1083 1539 2181 3249 4617 6543 6859 9747 13813 19629 20577 29241 41439 58887 61731 87723 124317 176661 185193 262447 372951 528529 555579 787341 1118853 1585587 1666737 2362023 3356559 4756761 4986493 7086069 10042051 14270283 14959479 21258207 30126153 42810849 44878437 63774621 90378459 128432547 134635311 190798969 271135377 384240583 403905933 572396907 813406131 1152721749 1211717799 1717190721 2440218393 3458165247 3625180411 5151572163 7300571077 10374495741 10875541233 15454716489 21901713231 31123487223 32626623699 46364149467 65705139693 93370461669 97879871097 138710850463 197115419079 293639613291 416132551389 591346257237 880918839873 1248397654167 1774038771711 2635506158797 3745192962501 7906518476391 11235578887503 23719555429173 33706736662509 71158666287519 213475998862557 640427996587671
• Sum of all divisors σ(n): 1014007045542400
• Sum of proper divisors (its aliquot sum) s(n): 373579048954729
• 640427996587671 is a deficient number, because the sum of its proper divisors (373579048954729) is less than itself. Its deficiency is 266848947632942

Bases of 640427996587671

• Binary: 10010001100111011101000011001111011010011010010111₂
• Hexadecimal: 0x24677433DA697
• Base-36: 6B0GK5T2FR

Squares and roots of 640427996587671

• 640427996587671 squared (640427996587671²) is 410148018813297938019989204241
• 640427996587671 cubed (640427996587671³) is 262670273993002792961103506547843406681512711
• The square root of 640427996587671 is 25306678.8928865771
• The cube root of 640427996587671 is 86196.5935434479

Scales and comparisons

• 640,427,996,587,671 seconds is equal to 20,363,629 years, 16 weeks, 3 days, 14 hours, 47 minutes, 51 seconds.
• To count from 1 to 640,427,996,587,671 would take you about fifty million, nine hundred nine thousand and seventy-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 640427996587671 cubic inches would be around 7183 feet tall.

Recreational maths with 640427996587671

• 640427996587671 backwards is 176785699724046
• 640427996587671 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 640427996587671's digits is 81
• More coming soon!