21831807690

Names of 21831807690

• Cardinal: 21831807690 can be written as Twenty-one billion, eight hundred thirty-one million, eight hundred seven thousand, six hundred ninety.

Scientific notation

• Scientific notation: 2.183180769 × 10¹⁰

Factors of 21831807690

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 159

Divisors of 21831807690

• Number of divisors d(n): 896
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 14 15 18 19 21 22 23 27 30 33 35 38 42 45 46 54 55 57 63 66 69 70 77 81 89 90 95 99 105 110 114 115 126 133 135 138 154 161 162 165 171 178 189 190 198 207 209 210 230 231 243 253 266 267 270 285 297 315 322 330 342 345 378 385 399 405 414 418 437 445 462 483 486 495 506 513 534 567 570 594 621 623 627 630 665 690 693 729 759 770 798 801 805 810 855 874 890 891 945 966 979 990 1026 1035 1045 1134 1155 1197 1215 1242 1246 1254 1265 1311 1330 1335 1386 1449 1458 1463 1485 1518 1539 1602 1610 1691 1701 1710 1771 1782 1863 1869 1881 1890 1958 1995 2047 2070 2079 2090 2185 2277 2310 2394 2403 2415 2430 2530 2565 2622 2670 2673 2835 2898 2926 2937 2970 3059 3078 3105 3115 3135 3382 3402 3465 3542 3591 3645 3726 3738 3762 3795 3933 3990 4005 4094 4158 4347 4370 4389 4455 4554 4617 4806 4807 4830 4895 5073 5103 5130 5313 5346 5589 5607 5643 5670 5874 5985 6118 6141 6210 6230 6237 6270 6555 6831 6853 6930 7182 7209 7245 7290 7315 7590 7695 7866 8010 8019 8455 8505 8694 8778 8811 8855 8910 9177 9234 9315 9345 9405 9614 9790 10146 10206 10235 10395 10626 10773 11178 11214 11286 11385 11799 11837 11970 12015 12282 12474 13041 13110 13167 13365 13662 13706 13851 14329 14418 14421 14490 14630 14685 15219 15295 15390 15939 16038 16767 16821 16910 16929 17010 17622 17710 17955 18354 18423 18601 18630 18690 18711 18810 19665 20470 20493 20559 20790 21546 21627 21735 21945 22517 22770 23085 23598 23674 24030 24035 25365 25515 26082 26334 26433 26565 26730 27531 27702 27945 28035 28215 28658 28842 29370 30438 30590 30705 31185 31878 32319 33534 33642 33649 33858 34155 34265 35397 35511 35910 36045 36846 37202 37422 38893 39123 39330 39501 40095 40986 41118 42987 43254 43263 43470 43890 44055 45034 45657 45885 46170 47817 48070 50463 50730 50787 51030 52866 53130 53865 55062 55269 55803 55890 56070 56133 56430 58995 59185 61410 61479 61677 62370 64638 64881 65205 65835 67298 67551 68310 68530 69255 70794 71022 71645 72090 72105 76095 77786 78246 79002 79299 79695 80190 82593 83835 84105 84645 85974 86526 88110 91314 91770 92115 93005 93555 95634 96957 100926 100947 101574 102465 102795 106191 106533 107730 108135 110538 111606 112266 112585 116679 117369 117990 118370 118503 122958 123354 128961 129762 129789 130207 130410 131670 132165 135102 136971 137655 138510 143290 143451 144210 151389 152190 152361 157619 158598 159390 161595 165186 165807 167409 167670 168210 168245 169290 176985 177555 184230 184437 185031 186010 187110 193914 194465 195615 197505 201894 202653 204930 205590 212382 213066 214935 216270 216315 225170 228285 233358 234738 237006 237897 239085 247779 252315 253935 257922 259578 260414 264330 272251 273942 275310 276345 279015 280665 286902 302778 302841 304722 307395 308385 315238 318573 319599 323190 324405 331614 334818 336490 337755 350037 353970 355110 355509 368874 370062 386883 388930 389367 390621 391230 395010 396495 405306 410913 412965 427823 429870 430353 432630 454167 456570 472857 475794 478170 484785 495558 497421 502227 504630 504735 507870 530955 532665 544502 552690 555093 558030 561330 583395 586845 592515 605682 607959 614790 616770 637146 639198 644805 648810 648945 651035 675510 684855 700074 711018 713691 717255 743337 756945 761805 773766 778734 781242 788095 792990 816753 821826 825930 829035 837045 855646 860706 908334 908523 922185 925155 945714 958797 969570 994842 1004454 1009470 1013265 1050111 1061910 1065330 1066527 1110186 1160649 1166790 1168101 1171863 1173690 1185030 1189485 1215918 1232739 1238895 1283469 1289610 1291059 1297890 1302070 1361255 1369710 1418571 1427382 1434510 1486674 1492263 1506681 1513890 1514205 1523610 1576190 1592865 1597995 1633506 1658070 1665279 1674090 1750185 1777545 1817046 1823877 1844370 1850310 1917594 1934415 1946835 1953105 2026530 2054565 2100222 2133054 2139115 2151765 2230011 2270835 2321298 2336202 2343726 2364285 2378970 2450259 2465478 2477790 2487105 2511135 2566938 2582118 2722510 2725569 2775465 2837142 2876391 2984526 2994761 3013362 3028410 3039795 3150333 3185730 3195990 3330558 3481947 3500370 3504303 3515589 3555090 3568455 3647754 3716685 3850407 3868830 3893670 3906210 4083765 4109130 4255713 4278230 4303530 4460022 4520043 4541670 4542615 4728570 4793985 4900518 4974210 4995837 5022270 5250555 5332635 5451138 5471631 5550930 5752782 5803245 5840505 5859315 5989522 6079590 6163695 6300666 6417345 6455295 6963894 7008606 7031178 7092855 7136910 7350777 7433370 7461315 7533405 7700814 8167530 8176707 8326395 8511426 8629173 8984283 9040086 9085230 9119385 9450999 9587970 9991674 10445841 10501110 10546767 10665270 10943262 11150055 11551221 11606490 11681010 11718630 12251295 12327390 12767139 12834690 12910590 13560129 13627845 14185710 14381955 14701554 14922630 14973805 15066810 15751665 16353414 16414893 16652790 17258346 17409735 17521515 17577945 17968566 18238770 18901998 19252035 20891682 21093534 21278565 22052331 22300110 22600215 23102442 24502590 24530121 24979185 25534278 26952849 27120258 27255690 27358155 28352997 28763910 29947610 31503330 31640301 32829786 34653663 34819470 35043030 35155890 36753885 38301417 38504070 40883535 42557130 43145865 44104662 44921415 45200430 47254995 49060242 49958370 52229205 52733835 53905698 54716310 56705994 57756105 63280602 63835695 66156993 67800645 69307326 73507770 76602834 80858547 81767070 82074465 86291730 89842830 94509990 94920903 103960989 104458410 105467670 110261655 114904251 115512210 122650605 127671390 132313986 134764245 135601290 141764985 158201505 161717094 164148930 173268315 189841806 191507085 198470979 207921978 220523310 229808502 242575641 245301210 269528490 283529970 311882967 316403010 330784965 346536630 383014170 396941958 404292735 474604515 485151282 519804945 574521255 623765934 661569930 727726923 808585470 949209030 992354895 1039609890 1149042510 1212878205 1455453846 1559414835 1984709790 2183180769 2425756410 3118829670 3638634615 4366361538 7277269230 10915903845 21831807690
• Sum of all divisors σ(n): 81592012800
• Sum of proper divisors (its aliquot sum) s(n): 59760205110
• 21831807690 is an abundant number, because the sum of its proper divisors (59760205110) is greater than itself. Its abundance is 37928397420

Bases of 21831807690

• Binary: 10100010101010001101111001011001010₂
• Hexadecimal: 0x51546F2CA
• Base-36: A123EMI

Squares and roots of 21831807690

• 21831807690 squared (21831807690²) is 476627827013143136100
• 21831807690 cubed (21831807690³) is 10405647059053528049778696609000
• The square root of 21831807690 is 147755.9057702941
• The cube root of 21831807690 is 2794.8804277215

Scales and comparisons

• 21,831,807,690 seconds is equal to 694 years, 9 weeks, 3 days, 23 hours, 1 minute, 30 seconds.
• To count from 1 to 21,831,807,690 would take you about one thousand, three hundred eighty-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 21831807690 cubic inches would be around 232.9 feet tall.

Recreational maths with 21831807690

• 21831807690 backwards is 09670813812
• 21831807690 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21831807690's digits is 45
• More coming soon!