19487691990

Names of 19487691990

• Cardinal: 19487691990 can be written as Nineteen billion, four hundred eighty-seven million, six hundred ninety-one thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.948769199 × 10¹⁰

Factors of 19487691990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2827

Divisors of 19487691990

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 81 90 117 130 135 162 195 234 270 351 390 405 585 702 810 1053 1063 1170 1741 1755 2106 2126 3189 3482 3510 5223 5265 5315 6378 8705 9567 10446 10530 10630 13819 15669 15945 17410 19134 22633 26115 27638 28701 31338 31890 41457 45266 47007 47835 52230 57402 67899 69095 78345 82914 86103 94014 95670 113165 124371 135798 138190 141021 143505 156690 172206 203697 207285 226330 235035 248742 282042 287010 339495 373113 407394 414570 430515 470070 611091 621855 678990 705105 746226 861030 1018485 1119339 1222182 1243710 1410210 1833273 1850683 1865565 2036970 2238678 3055455 3666546 3701366 3731130 5552049 5596695 6110910 9166365 9253415 11104098 11193390 16656147 18332730 18506830 24058879 27760245 33312294 48117758 49968441 55520490 72176637 83280735 99936882 120294395 144353274 149905323 166561470 216529911 240588790 249842205 299810646 360883185 433059822 499684410 649589733 721766370 749526615 1082649555 1299179466 1499053230 1948769199 2165299110 3247948665 3897538398 6495897330 9743845995 19487691990
• Sum of all divisors σ(n): 56516556096
• Sum of proper divisors (its aliquot sum) s(n): 37028864106
• 19487691990 is an abundant number, because the sum of its proper divisors (37028864106) is greater than itself. Its abundance is 17541172116

Bases of 19487691990

• Binary: 10010001001100011101001010011010110₂
• Hexadecimal: 0x4898E94D6
• Base-36: 8YAGVDI

Squares and roots of 19487691990

• 19487691990 squared (19487691990²) is 379770139097110160100
• 19487691990 cubed (19487691990³) is 7400843497723939499128387599000
• The square root of 19487691990 is 139598.3237363543
• The cube root of 19487691990 is 2691.0398908341

Scales and comparisons

• 19,487,691,990 seconds is equal to 619 years, 33 weeks, 4 days, 23 hours, 46 minutes, 30 seconds.
• To count from 1 to 19,487,691,990 would take you about one thousand, two hundred thirty-nine 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 19487691990 cubic inches would be around 224.3 feet tall.

Recreational maths with 19487691990

• 19487691990 backwards is 09919678491
• The number of decimal digits it has is: 11
• The sum of 19487691990's digits is 63
• More coming soon!