21172199616

Names of 21172199616

• Cardinal: 21172199616 can be written as Twenty-one billion, one hundred seventy-two million, one hundred ninety-nine thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 2.1172199616 × 10¹⁰

Factors of 21172199616

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 21465

Divisors of 21172199616

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 1877 3754 5631 7508 11262 15016 16893 19583 22524 30032 33786 39166 45048 58749 60064 67572 78332 90096 117498 120128 135144 156664 176247 180192 234996 270288 313328 352494 360384 469992 540576 626656 704988 939984 1081152 1253312 1409976 1879968 2819952 3759936 5639904 11279808 36757291 73514582 110271873 147029164 220543746 294058328 330815619 441087492 588116656 661631238 882174984 1176233312 1323262476 1764349968 2352466624 2646524952 3528699936 5293049904 7057399872 10586099808 21172199616
• Sum of all divisors σ(n): 60721719552
• Sum of proper divisors (its aliquot sum) s(n): 39549519936
• 21172199616 is an abundant number, because the sum of its proper divisors (39549519936) is greater than itself. Its abundance is 18377320320

Bases of 21172199616

• Binary: 10011101101111101100010000011000000₂
• Hexadecimal: 0x4EDF620C0
• Base-36: 9Q5DPS0

Squares and roots of 21172199616

• 21172199616 squared (21172199616²) is 448262036579750547456
• 21172199616 cubed (21172199616³) is 9490693318741172494223712976896
• The square root of 21172199616 is 145506.6995570995
• The cube root of 21172199616 is 2766.4447002325

Scales and comparisons

• 21,172,199,616 seconds is equal to 673 years, 10 weeks, 6 days, 14 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,172,199,616 would take you about one thousand, three hundred forty-six 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 21172199616 cubic inches would be around 230.5 feet tall.

Recreational maths with 21172199616

• 21172199616 backwards is 61699127112
• The number of decimal digits it has is: 11
• The sum of 21172199616's digits is 45
• More coming soon!