20665380840

Names of 20665380840

• Cardinal: 20665380840 can be written as Twenty billion, six hundred sixty-five million, three hundred eighty thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.066538084 × 10¹⁰

Factors of 20665380840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 317

Divisors of 20665380840

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 67 78 104 120 130 134 156 169 195 201 227 260 268 312 335 338 390 402 454 507 520 536 670 676 681 780 804 845 871 908 1005 1014 1135 1340 1352 1362 1560 1608 1690 1742 1816 2010 2028 2270 2535 2613 2680 2724 2951 3380 3405 3484 4020 4056 4355 4489 4540 5070 5226 5448 5902 6760 6810 6968 8040 8710 8853 8978 9080 10140 10452 11323 11804 13065 13467 13620 14755 15209 17420 17706 17956 20280 20904 22445 22646 23608 26130 26934 27240 29510 30418 33969 34840 35412 35912 38363 44265 44890 45292 45627 52260 53868 56615 58357 59020 60836 67335 67938 70824 76045 76726 88530 89780 90584 91254 104520 107736 113230 115089 116714 118040 121672 134670 135876 152090 153452 169845 175071 177060 179560 182508 191815 197717 226460 228135 230178 233428 269340 271752 291785 304180 306904 339690 350142 354120 365016 383630 395434 452920 456270 460356 466856 538680 575445 583570 593151 608360 679380 700284 758641 767260 790868 875355 912540 920712 988585 1019003 1150890 1167140 1186302 1358760 1400568 1517282 1534520 1581736 1750710 1825080 1977170 2038006 2275923 2301780 2334280 2372604 2570321 2965755 3034564 3057009 3501420 3793205 3954340 4076012 4551846 4603560 4745208 5095015 5140642 5931510 6069128 6114018 7002840 7586410 7710963 7908680 8152024 9103692 10190030 10281284 11379615 11863020 12228036 12851605 13247039 15172820 15285045 15421926 18207384 20380060 20562568 22759230 23726040 24456072 25703210 26494078 30345640 30570090 30843852 38554815 39741117 40760120 45518460 51406420 52988156 61140180 61687704 66235195 77109630 79482234 91036920 102812840 105976312 122280360 132470390 154219260 158964468 172211507 198705585 264940780 308438520 317928936 344423014 397411170 516634521 529881560 688846028 794822340 861057535 1033269042 1377692056 1589644680 1722115070 2066538084 2583172605 3444230140 4133076168 5166345210 6888460280 10332690420 20665380840
• Sum of all divisors σ(n): 68449056480
• Sum of proper divisors (its aliquot sum) s(n): 47783675640
• 20665380840 is an abundant number, because the sum of its proper divisors (47783675640) is greater than itself. Its abundance is 27118294800

Bases of 20665380840

• Binary: 10011001111110000001010111111101000₂
• Hexadecimal: 0x4CFC0AFE8
• Base-36: 9HRMTWO

Squares and roots of 20665380840

• 20665380840 squared (20665380840²) is 427057965262239105600
• 20665380840 cubed (20665380840³) is 8825315492899661588364976704000
• The square root of 20665380840 is 143754.5854572995
• The cube root of 20665380840 is 2744.1918556905

Scales and comparisons

• 20,665,380,840 seconds is equal to 657 years, 4 weeks, 6 days, 15 hours, 34 minutes.
• To count from 1 to 20,665,380,840 would take you about one thousand, three hundred fourteen 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 20665380840 cubic inches would be around 228.7 feet tall.

Recreational maths with 20665380840

• 20665380840 backwards is 04808356602
• The number of decimal digits it has is: 11
• The sum of 20665380840's digits is 42
• More coming soon!