19948128291

Names of 19948128291

• Cardinal: 19948128291 can be written as Nineteen billion, nine hundred forty-eight million, one hundred twenty-eight thousand, two hundred ninety-one.

Scientific notation

• Scientific notation: 1.9948128291 × 10¹⁰

Factors of 19948128291

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 908

Divisors of 19948128291

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 9 13 19 21 39 49 57 63 91 117 133 147 171 247 273 367 399 441 499 637 741 819 931 1101 1197 1497 1729 1911 2223 2569 2793 3303 3493 4491 4771 5187 5733 6487 6973 7707 8379 9481 10479 12103 14313 15561 17983 19461 20919 23121 24451 28443 31437 33397 36309 42939 45409 48811 53949 58383 62757 66367 73353 85329 90649 100191 108927 123253 136227 146433 161847 183133 199101 220059 233779 271947 300573 317863 341677 369759 408681 439299 464569 549399 597303 634543 701337 815841 862771 953589 1025031 1109277 1281931 1393707 1648197 1903629 2104011 2380729 2588313 2860767 3075093 3479527 3845793 4181121 4441801 5710887 6039397 7142187 7764939 8973517 10438581 11537379 13325403 16665103 18118191 21426561 24356689 26920551 31315743 39976209 45233851 49995309 54354573 73070067 80761653 116655721 135701553 149985927 170496823 219210201 316636957 349967163 407104659 511490469 949910871 1049901489 1534471407 2216458699 2849732613 6649376097 19948128291
• Sum of all divisors σ(n): 38176320000
• Sum of proper divisors (its aliquot sum) s(n): 18228191709
• 19948128291 is a deficient number, because the sum of its proper divisors (18228191709) is less than itself. Its deficiency is 1719936582

Bases of 19948128291

• Binary: 10010100101000000000100100000100011₂
• Hexadecimal: 0x4A5004823
• Base-36: 95WLMAR

Squares and roots of 19948128291

• 19948128291 squared (19948128291²) is 397927822314194580681
• 19948128291 cubed (19948128291³) is 7937915250081806005761538146171
• The square root of 19948128291 is 141237.8429848035
• The cube root of 19948128291 is 2712.0688935399

Scales and comparisons

• 19,948,128,291 seconds is equal to 634 years, 15 weeks, 2 hours, 44 minutes, 51 seconds.
• To count from 1 to 19,948,128,291 would take you about one thousand, two hundred sixty-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 19948128291 cubic inches would be around 226 feet tall.

Recreational maths with 19948128291

• 19948128291 backwards is 19282184991
• The number of decimal digits it has is: 11
• The sum of 19948128291's digits is 54
• More coming soon!