21820643616690

Names of 21820643616690

• Cardinal: 21820643616690 can be written as Twenty-one trillion, eight hundred twenty billion, six hundred forty-three million, six hundred sixteen thousand, six hundred ninety.

Scientific notation

• Scientific notation: 2.182064361669 × 10¹³

Factors of 21820643616690

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2056

Divisors of 21820643616690

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 127 153 170 254 255 306 381 510 635 762 765 809 1093 1143 1270 1530 1618 1905 2159 2186 2286 2427 3279 3810 4045 4318 4854 5465 5715 6477 6558 7281 8090 9837 10795 10930 11430 12135 12954 13753 14562 16129 16395 18581 19431 19674 21590 24270 27506 32258 32385 32790 36405 37162 38862 41259 48387 49185 55743 64770 68765 72810 80645 82518 92905 96774 97155 98370 102743 111486 123777 137530 138811 145161 161290 167229 185810 194310 205486 206295 241935 247554 274193 277622 278715 290322 308229 334458 412590 416433 483870 513715 548386 557430 616458 618885 694055 725805 822579 832866 836145 884237 924687 1027430 1237770 1249299 1370965 1388110 1451610 1541145 1645158 1672290 1746631 1768474 1849374 2082165 2359787 2467737 2498598 2652711 2741930 3082290 3493262 4112895 4164330 4421185 4623435 4719574 4935474 5239893 5305422 6246495 7079361 7958133 8225790 8733155 8842370 9246870 10479786 11798935 12338685 12492990 13048361 13263555 14158722 15032029 15719679 15916266 17466310 17628997 21238083 23597870 24677370 26096722 26199465 26527110 30064058 31439358 35257994 35396805 39145083 39790665 42476166 45096087 52398930 52886991 65241805 70793610 75160145 78290166 78598395 79581330 88144985 90192174 105773982 106190415 112298099 117435249 130483610 135288261 150320290 157196790 158660973 176289970 195725415 212380830 221822137 224596198 225480435 234870498 264434955 270576522 299692949 317321946 336894297 391450830 443644274 450960870 528869910 561490495 587176245 599385898 665466411 673788594 676441305 793304865 899078847 1010682891 1109110685 1122980990 1174352490 1330932822 1352882610 1498464745 1586609730 1684471485 1798157694 1909067683 1996399233 2021365782 2218221370 2697236541 2996929490 3327332055 3368942970 3818135366 3992798466 4495394235 5053414455 5394473082 5727203049 6654664110 8990788470 9545338415 9981996165 10106828910 11454406098 13486182705 14261858573 17181609147 19090676830 19963992330 26972365410 28523717146 28636015245 34363218294 42785575719 57272030490 71309292865 85571151438 85908045735 128356727157 142618585730 171816091470 213927878595 242451595741 256713454314 427855757190 484903191482 641783635785 727354787223 1212257978705 1283567271570 1454709574446 2182064361669 2424515957410 3636773936115 4364128723338 7273547872230 10910321808345 21820643616690
• Sum of all divisors σ(n): 60677979251760
• Sum of proper divisors (its aliquot sum) s(n): 38857335635070
• 21820643616690 is an abundant number, because the sum of its proper divisors (38857335635070) is greater than itself. Its abundance is 17036692018380

Bases of 21820643616690

• Binary: 100111101100010000011101101100010011110110010₂
• Hexadecimal: 0x13D883B627B2
• Base-36: 7QG9JTEWI

Squares and roots of 21820643616690

• 21820643616690 squared (21820643616690²) is 476140487846594043646556100
• 21820643616690 cubed (21820643616690³) is 10389691896777444842453999613966981309000
• The square root of 21820643616690 is 4671257.1773228243
• The cube root of 21820643616690 is 27944.0394297447

Scales and comparisons

• 21,820,643,616,690 seconds is equal to 693,828 years, 50 weeks, 3 days, 13 hours, 31 minutes, 30 seconds.
• To count from 1 to 21,820,643,616,690 would take you about one million, seven hundred thirty-four thousand, five hundred seventy-two 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 21820643616690 cubic inches would be around 2328.7 feet tall.

Recreational maths with 21820643616690

• 21820643616690 backwards is 09661634602812
• The number of decimal digits it has is: 14
• The sum of 21820643616690's digits is 54
• More coming soon!