20409516864

Names of 20409516864

• Cardinal: 20409516864 can be written as Twenty billion, four hundred nine million, five hundred sixteen thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 2.0409516864 × 10¹⁰

Factors of 20409516864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 87

Divisors of 20409516864

• Number of divisors d(n): 280
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 71 72 81 88 96 99 108 132 142 144 162 176 192 198 213 216 264 284 288 297 324 352 396 426 432 528 568 576 594 639 648 704 781 792 852 864 891 1056 1136 1188 1278 1296 1562 1584 1704 1728 1782 1917 2112 2272 2343 2376 2556 2592 3124 3168 3408 3564 3834 4544 4686 4752 5041 5112 5184 5751 6248 6336 6816 7029 7128 7668 9372 9504 10082 10224 11502 12496 13632 14058 14256 15123 15336 18744 19008 20164 20448 21087 23004 24992 28116 28512 30246 30672 37488 40328 40896 42174 45369 46008 49984 55451 56232 57024 60492 61344 63261 74976 80656 84348 90738 92016 110902 112464 120984 122688 126522 136107 149952 161312 166353 168696 181476 184032 221804 224928 241968 253044 272214 322624 332706 337392 357911 362952 368064 408321 443608 449856 483936 499059 506088 544428 665412 674784 715822 725904 816642 887216 967872 998118 1012176 1073733 1088856 1330824 1349568 1431644 1451808 1497177 1633284 1774432 1996236 2024352 2147466 2177712 2661648 2863288 2903616 2994354 3221199 3266568 3548864 3937021 3992472 4048704 4294932 4355424 4491531 5323296 5726576 5988708 6442398 6533136 7874042 7984944 8589864 8710848 8983062 9663597 10646592 11453152 11811063 11977416 12884796 13066272 15748084 15969888 17179728 17966124 19327194 22906304 23622126 23954832 25769592 26132544 28990791 31496168 31939776 34359456 35433189 35932248 38654388 47244252 47909664 51539184 57981582 62992336 68718912 70866378 71864496 77308776 94488504 95819328 103078368 106299567 115963164 125984672 141732756 143728992 154617552 188977008 206156736 212599134 231926328 251969344 283465512 287457984 309235104 318898701 377954016 425198268 463852656 566931024 618470208 637797402 755908032 850396536 927705312 1133862048 1275594804 1700793072 1855410624 2267724096 2551189608 3401586144 5102379216 6803172288 10204758432 20409516864
• Sum of all divisors σ(n): 66943077696
• Sum of proper divisors (its aliquot sum) s(n): 46533560832
• 20409516864 is an abundant number, because the sum of its proper divisors (46533560832) is greater than itself. Its abundance is 26124043968

Bases of 20409516864

• Binary: 10011000000100000001000001101000000₂
• Hexadecimal: 0x4C0808340
• Base-36: 9DJAS00

Squares and roots of 20409516864

• 20409516864 squared (20409516864²) is 416548378621900394496
• 20409516864 cubed (20409516864³) is 8501551158155533181194364780544
• The square root of 20409516864 is 142861.8803740171
• The cube root of 20409516864 is 2732.8192491565

Scales and comparisons

• 20,409,516,864 seconds is equal to 648 years, 49 weeks, 6 days, 6 hours, 14 minutes, 24 seconds.
• To count from 1 to 20,409,516,864 would take you about one thousand, two hundred ninety-seven 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 20409516864 cubic inches would be around 227.7 feet tall.

Recreational maths with 20409516864

• 20409516864 backwards is 46861590402
• The number of decimal digits it has is: 11
• The sum of 20409516864's digits is 45
• More coming soon!