644381073493

Names of 644381073493

• Cardinal: 644381073493 can be written as Six hundred forty-four billion, three hundred eighty-one million, seventy-three thousand, four hundred ninety-three.

Scientific notation

• Scientific notation: 6.44381073493 × 10¹¹

Factors of 644381073493

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 3245

Divisors of 644381073493

• Number of divisors d(n): 48
• Complete list of divisors:
  1 17 29 37 449 493 629 841 1073 2713 7633 13021 14297 16613 18241 31117 46121 78677 100381 221357 282421 377609 481777 528989 1218137 1337509 1706477 2281633 2911049 6419353 8190209 13971533 20708329 35325973 38787761 45071069 49487833 84420421 237516061 600541541 766208173 1024453217 1307061001 1435147157 17415704689 22220037017 37904769029 644381073493
• Sum of all divisors σ(n): 727606573200
• Sum of proper divisors (its aliquot sum) s(n): 83225499707
• 644381073493 is a deficient number, because the sum of its proper divisors (83225499707) is less than itself. Its deficiency is 561155573786

Bases of 644381073493

• Binary: 1001011000001000000110101110000001010101₂
• Hexadecimal: 0x96081AE055
• Base-36: 880VUQFP

Squares and roots of 644381073493

• 644381073493 squared (644381073493²) is 415226967875991067221049
• 644381073493 cubed (644381073493³) is 267564399303174549997178278945554157
• The square root of 644381073493 is 802733.5009160885
• The cube root of 644381073493 is 8637.3580952371

Scales and comparisons

• 644,381,073,493 seconds is equal to 20,489 years, 16 weeks, 6 days, 6 hours, 38 minutes, 13 seconds.
• To count from 1 to 644,381,073,493 would take you about forty thousand, nine hundred seventy-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 644381073493 cubic inches would be around 719.8 feet tall.

Recreational maths with 644381073493

• 644381073493 backwards is 394370183446
• The number of decimal digits it has is: 12
• The sum of 644381073493's digits is 52
• More coming soon!