18999316840

Names of 18999316840

• Cardinal: 18999316840 can be written as Eighteen billion, nine hundred ninety-nine million, three hundred sixteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.899931684 × 10¹⁰

Factors of 18999316840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 742

Divisors of 18999316840

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 127 140 196 245 254 280 392 490 508 601 635 889 980 1016 1202 1270 1778 1960 2404 2540 3005 3556 4207 4445 4808 5080 6010 6223 7112 8414 8890 12020 12446 16129 16828 17780 21035 24040 24892 29449 31115 32258 33656 35560 42070 49784 58898 62230 64516 76327 80645 84140 112903 117796 124460 129032 147245 152654 161290 168280 225806 235592 248920 294490 305308 322580 381635 451612 534289 564515 588980 610616 645160 763270 790321 903224 1068578 1129030 1177960 1526540 1580642 2137156 2258060 2671445 3053080 3161284 3740023 3951605 4274312 4516120 5342890 6322568 7480046 7903210 9693529 10685780 14960092 15806420 18700115 19387058 21371560 29920184 31612840 37400230 38774116 48467645 67854703 74800460 77548232 96935290 135709406 149600920 193870580 271418812 339273515 387741160 474982921 542837624 678547030 949965842 1357094060 1899931684 2374914605 2714188120 3799863368 4749829210 9499658420 18999316840
• Sum of all divisors σ(n): 50205842820
• Sum of proper divisors (its aliquot sum) s(n): 31206525980
• 18999316840 is an abundant number, because the sum of its proper divisors (31206525980) is greater than itself. Its abundance is 12207209140

Bases of 18999316840

• Binary: 10001101100011100101001000101101000₂
• Hexadecimal: 0x46C729168
• Base-36: 8Q7PAP4

Squares and roots of 18999316840

• 18999316840 squared (18999316840²) is 360974040386707585600
• 18999316840 cubed (18999316840³) is 6858260164322013543245821504000
• The square root of 18999316840 is 137838.0094168513
• The cube root of 18999316840 is 2668.3696668425

Scales and comparisons

• 18,999,316,840 seconds is equal to 604 years, 6 weeks, 1 day, 12 hours, 40 seconds.
• To count from 1 to 18,999,316,840 would take you about one thousand, two hundred 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 18999316840 cubic inches would be around 222.4 feet tall.

Recreational maths with 18999316840

• 18999316840 backwards is 04861399981
• The number of decimal digits it has is: 11
• The sum of 18999316840's digits is 58
• More coming soon!