20991571356800

Names of 20991571356800

• Cardinal: 20991571356800 can be written as Twenty trillion, nine hundred ninety-one billion, five hundred seventy-one million, three hundred fifty-six thousand, eight hundred.

Scientific notation

• Scientific notation: 2.09915713568 × 10¹³

Factors of 20991571356800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 254

Divisors of 20991571356800

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 25 32 37 40 44 50 55 64 74 80 88 100 110 121 128 148 160 176 185 199 200 220 242 275 296 320 352 370 398 400 407 440 484 550 592 605 640 704 740 796 800 814 880 925 968 995 1100 1184 1210 1369 1408 1480 1592 1600 1628 1760 1850 1936 1990 2035 2189 2200 2368 2420 2738 2960 3025 3184 3200 3256 3520 3700 3872 3980 4070 4378 4400 4477 4736 4840 4975 5476 5920 6050 6368 6512 6845 7040 7363 7400 7744 7960 8140 8756 8800 8954 9680 9950 10175 10945 10952 11840 12100 12736 13024 13690 14726 14800 15059 15488 15920 16280 17512 17600 17908 19360 19900 20350 21890 21904 22385 23680 24079 24200 25472 26048 27380 29452 29600 30118 31840 32560 34225 35024 35200 35816 36815 38720 39601 39800 40700 43780 43808 44770 48158 48400 52096 54725 54760 58904 59200 60236 63680 65120 68450 70048 71632 73630 75295 77440 79202 79600 80993 81400 87560 87616 89540 96316 96800 109450 109520 111925 117808 118400 120395 120472 127360 130240 136900 140096 143264 147260 150590 158404 159200 161986 162800 165649 175120 175232 179080 184075 192632 193600 198005 218900 219040 223850 235616 240790 240944 260480 272431 273800 280192 286528 294520 301180 316808 318400 323972 325600 331298 350240 358160 368150 376475 385264 387200 396010 404965 435611 437800 438080 447700 471232 481580 481888 544862 547600 573056 589040 601975 602360 633616 636800 647944 651200 662596 700480 716320 736300 752950 770528 792020 809930 828245 871222 875600 876160 890923 895400 942464 963160 963776 990025 1089724 1095200 1178080 1203950 1204720 1267232 1295888 1302400 1325192 1362155 1400960 1432640 1465237 1472600 1505900 1541056 1584040 1619860 1656490 1742444 1751200 1781846 1790800 1926320 1927552 1980050 2024825 2178055 2179448 2190400 2356160 2407900 2409440 2534464 2591776 2650384 2724310 2865280 2930474 2945200 2996741 3011800 3082112 3168080 3239720 3312980 3484888 3502400 3563692 3581600 3852640 3960100 4049650 4141225 4356110 4358896 4380800 4454615 4712320 4791721 4815800 4818880 5068928 5183552 5300768 5448620 5860948 5890400 5993482 6023600 6336160 6479440 6625960 6810775 6969776 7004800 7127384 7163200 7326185 7705280 7920200 8099300 8282450 8712220 8717792 8909230 9583442 9631600 9637760 10367104 10601536 10890275 10897240 11721896 11780800 11986964 12047200 12672320 12958880 13251920 13621550 13939552 14254768 14326400 14652370 14983705 15410560 15840400 16117607 16198600 16564900 17424440 17435584 17818460 19166884 19263200 21203072 21780550 21794480 22273075 23443792 23561600 23958605 23973928 24094400 25344640 25917760 26503840 27243100 27879104 28509536 29304740 29967410 31680800 32235214 32397200 32964151 33129800 34848880 34871168 35636920 36630925 38333768 38526400 43561100 43588960 44546150 46887584 47917210 47947856 48188800 51835520 53007680 54213769 54486200 55758208 57019072 58609480 59934820 63361600 64470428 64794400 65928302 66259600 69697760 71273840 73261850 74918525 76667536 77052800 80588035 87122200 87177920 89092300 93775168 95834420 95895712 106015360 108427538 108972400 114038144 117218960 119793025 119869640 126723200 128940856 129588800 131856604 132519200 139395520 142547680 146523700 149837050 153335072 161176070 164820755 174244400 174355840 177293677 178184600 187550336 191668840 191791424 216855076 217944800 234437920 239586050 239739280 257881712 259177600 263713208 265038400 271068845 278791040 285095360 293047400 299674100 306670144 322352140 329641510 348488800 354587354 356369200 383337680 383582848 402940175 433710152 435889600 468875840 479172100 479478560 515763424 527426416 530076800 542137690 570190720 586094800 596351459 599348200 613340288 644704280 659283020 696977600 709174708 712738400 766675360 805880350 824103775 867420304 871779200 886468385 937751680 958344200 958957120 1031526848 1054852832 1084275380 1172189600 1192702918 1198696400 1289408560 1318566040 1355344225 1393955200 1418349416 1425476800 1533350720 1611760700 1648207550 1734840608 1772936770 1916688400 1917914240 2063053696 2109705664 2168550760 2344379200 2385405836 2397392800 2578817120 2637132080 2710688450 2836698832 2850953600 2981757295 3066701440 3223521400 3296415100 3469681216 3545873540 3833376800 4219411328 4337101520 4432341925 4688758400 4770811672 4794785600 5157634240 5274264160 5421376900 5673397664 5963514590 6447042800 6559866049 6592830200 6939362432 7091747080 7666753600 8674203040 8864683850 9541623344 9589571200 10315268480 10548528320 10842753800 11346795328 11927029180 12894085600 13119732098 13185660400 14183494160 14908786475 15333507200 17348406080 17729367700 19083246688 21097056640 21685507600 22693590656 23854058360 25788171200 26239464196 26371320800 28366988320 29817572950 32799330245 34696812160 35458735400 38166493376 43371015200 47708116720 51576342400 52478928392 52742641600 56733976640 59635145900 65598660490 70917470800 76332986752 86742030400 95416233440 104957856784 105485283200 113467953280 119270291800 131197320980 141834941600 163996651225 173484060800 190832466880 209915713568 238540583600 262394641960 283669883200 327993302450 381664933760 419831427136 477081167200 524789283920 567339766400 655986604900 839662854272 954162334400 1049578567840 1311973209800 1908324668800 2099157135680 2623946419600 4198314271360 5247892839200 10495785678400 20991571356800
• Sum of all divisors σ(n): 58876447359555
• Sum of proper divisors (its aliquot sum) s(n): 37884876002755
• 20991571356800 is an abundant number, because the sum of its proper divisors (37884876002755) is greater than itself. Its abundance is 16893304645955

Bases of 20991571356800

• Binary: 100110001011101111011001001110110110010000000₂
• Hexadecimal: 0x13177B276C80
• Base-36: 7FVE7LKZK

Squares and roots of 20991571356800

• 20991571356800 squared (20991571356800²) is 440646068027626192906240000
• 20991571356800 cubed (20991571356800³) is 9249853380095262262108058931986432000000
• The square root of 20991571356800 is 4581655.9622913635
• The cube root of 20991571356800 is 27585.5501607483

Scales and comparisons

• 20,991,571,356,800 seconds is equal to 667,467 years, 1 week, 6 days, 19 hours, 33 minutes, 20 seconds.
• To count from 1 to 20,991,571,356,800 would take you about one million, six hundred sixty-eight thousand, six hundred sixty-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 20991571356800 cubic inches would be around 2298.8 feet tall.

Recreational maths with 20991571356800

• 20991571356800 backwards is 00865317519902
• The number of decimal digits it has is: 14
• The sum of 20991571356800's digits is 56
• More coming soon!