21228728734800

Names of 21228728734800

• Cardinal: 21228728734800 can be written as Twenty-one trillion, two hundred twenty-eight billion, seven hundred twenty-eight million, seven hundred thirty-four thousand, eight hundred.

Scientific notation

• Scientific notation: 2.12287287348 × 10¹³

Factors of 21228728734800

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 226

Divisors of 21228728734800

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 36 40 45 48 50 53 54 60 72 75 80 81 90 100 106 108 120 135 144 150 159 162 163 180 200 212 216 225 240 243 265 270 300 318 324 326 360 400 405 424 432 450 477 486 489 530 540 600 636 648 652 675 720 729 795 810 815 848 900 954 972 978 1060 1080 1200 1215 1272 1296 1304 1325 1350 1431 1458 1467 1590 1620 1630 1800 1908 1944 1956 2025 2120 2160 2187 2385 2430 2445 2544 2608 2650 2700 2809 2862 2916 2934 3180 3240 3260 3600 3645 3816 3888 3912 3975 4050 4075 4240 4293 4374 4401 4770 4860 4890 5300 5400 5618 5724 5832 5868 6075 6360 6480 6520 7155 7290 7335 7632 7824 7950 8100 8150 8427 8586 8639 8748 8802 9540 9720 9780 10600 10800 10935 11236 11448 11664 11736 11925 12150 12225 12720 12879 13040 13203 14045 14310 14580 14670 15900 16200 16300 16854 17172 17278 17496 17604 18225 19080 19440 19560 21200 21465 21870 22005 22472 22896 23472 23850 24300 24450 25281 25758 25917 26406 28090 28620 29160 29340 31800 32400 32600 33708 34344 34556 34992 35208 35775 36450 36675 38160 38637 39120 39609 42135 42930 43195 43740 44010 44944 47700 48600 48900 50562 51516 51834 52812 54675 56180 57240 58320 58680 63600 64395 65200 66015 67416 68688 69112 70225 70416 71550 72900 73350 75843 77274 77751 79218 84270 85860 86390 87480 88020 95400 97200 97800 101124 103032 103668 105624 107325 109350 110025 112360 114480 115911 117360 118827 126405 128790 129585 132030 134832 138224 140450 143100 145800 146700 148877 151686 154548 155502 158436 168540 171720 172780 174960 176040 190800 193185 195600 198045 202248 206064 207336 210675 211248 214650 215975 218700 220050 224720 227529 231822 233253 237654 252810 257580 259170 264060 280900 286200 291600 293400 297754 303372 309096 311004 316872 321975 330075 337080 343440 345560 352080 356481 379215 386370 388755 396090 404496 414672 421350 429300 431950 437400 440100 446631 455058 457867 463644 466506 475308 505620 515160 518340 528120 561800 572400 579555 586800 594135 595508 606744 618192 622008 632025 633744 643950 647925 660150 674160 682587 691120 699759 712962 744385 758430 772740 777510 792180 842700 858600 863900 874800 880200 893262 910116 915734 927288 933012 950616 965925 990225 1011240 1030320 1036680 1056240 1123600 1137645 1159110 1166265 1188270 1191016 1213488 1244016 1264050 1287900 1295850 1320300 1339893 1365174 1373601 1399518 1425924 1488770 1516860 1545480 1555020 1584360 1685400 1717200 1727800 1760400 1782405 1786524 1820232 1831468 1854576 1866024 1896075 1901232 1931850 1943775 1980450 2022480 2047761 2073360 2099277 2233155 2275290 2289335 2318220 2332530 2376540 2382032 2528100 2575800 2591700 2640600 2679786 2730348 2747202 2799036 2851848 2897775 2970675 2977540 3033720 3090960 3110040 3168720 3370800 3412935 3455600 3498795 3564810 3573048 3640464 3662936 3721925 3732048 3792150 3863700 3887550 3960900 4019679 4095522 4120803 4198554 4466310 4550580 4578670 4636440 4665060 4753080 5056200 5151600 5183400 5281200 5359572 5460696 5494404 5598072 5688225 5703696 5795550 5831325 5941350 5955080 6067440 6143283 6220080 6297831 6699465 6825870 6868005 6997590 7129620 7146096 7325872 7443850 7584300 7727400 7775100 7921800 8039358 8191044 8241606 8397108 8912025 8932620 9101160 9157340 9272880 9330120 9506160 10112400 10238805 10366800 10496385 10719144 10921392 10988808 11165775 11196144 11376450 11446675 11591100 11662650 11882700 11910160 12059037 12286566 12362409 12595662 13398930 13651740 13736010 13995180 14259240 14887700 15168600 15454800 15550200 15843600 16078716 16382088 16483212 16794216 17064675 17493975 17824050 17865240 18202320 18314680 18660240 18893493 20098395 20477610 20604015 20992770 21438288 21977616 22331550 22752900 22893350 23182200 23325300 23765400 24118074 24266951 24573132 24724818 25191324 26797860 27303480 27472020 27990360 28518480 29775400 30337200 30716415 31100400 31489155 32157432 32764176 32966424 33497325 33588432 34129350 34340025 34987950 35648100 35730480 36177111 36629360 37087227 37786986 40196790 40955220 41208030 41985540 44663100 45505800 45786700 46364400 46650600 47530800 48236148 48533902 49146264 49449636 50382648 51194025 52481925 53595720 54606960 54944040 55980720 59550800 60295185 61432830 61812045 62978310 64314864 65932848 66994650 68258700 68680050 69975900 71296200 72354222 72800853 74174454 75573972 80393580 81910440 82416060 83971080 89326200 91011600 91573400 93301200 94467465 96472296 97067804 98292528 98899272 100491975 100765296 102388050 103020075 104963850 107191440 108531333 109888080 111261681 120590370 121334755 122865660 123624090 125956620 133989300 136517400 137360100 139951800 142592400 144708444 145601706 148348908 151147944 153582075 157445775 160787160 163820880 164832120 167942160 178652400 180885555 183146800 185436135 188934930 192944592 194135608 197798544 200983950 204776100 206040150 209927700 217062666 218402559 222523362 241180740 242669510 245731320 247248180 251913240 267978600 273034800 274720200 279903600 289416888 291203412 296697816 301475925 302295888 307164150 309060225 314891550 321574320 325593999 329664240 333785043 361771110 364004265 370872270 377869860 388271216 401967900 409552200 412080300 419855400 434125332 436805118 445046724 472337325 482361480 485339020 491462640 494496360 503826480 535957200 542656665 549440400 556308405 578833776 582406824 593395632 602951850 606673775 614328300 618120450 629783100 651187998 655207677 667570086 723542220 728008530 741744540 755739720 803935800 819104400 824160600 839710800 868250664 873610236 890093448 904427775 927180675 944674650 964722960 970678040 988992720 1001355129 1085313330 1092012795 1112616810 1164813648 1205903700 1213347550 1228656600 1236240900 1259566200 1302375996 1310415354 1335140172 1447084440 1456017060 1483489080 1511479440 1607871600 1627969995 1648321200 1668925215 1736501328 1747220472 1780186896 1808855550 1820021325 1854361350 1889349300 1941356080 1965623031 2002710258 2170626660 2184025590 2225233620 2411807400 2426695100 2457313200 2472481800 2519132400 2604751992 2620830708 2670280344 2713283325 2781542025 2894168880 2912034120 2966978160 3255939990 3276038385 3337850430 3494440944 3617711100 3640042650 3708722700 3778698600 3931246062 4005420516 4341253320 4368051180 4450467240 4823614800 4853390200 4944963600 5006775645 5209503984 5241661416 5340560688 5426566650 5460063975 5563084050 5824068240 5896869093 6511879980 6552076770 6675700860 7235422200 7280085300 7417445400 7557397200 7862492124 8010841032 8139849975 8344626075 8682506640 8736102360 8900934480 9706780400 9828115155 10013551290 10483322832 10853133300 10920127950 11126168100 11793738186 13023759960 13104153540 13351401720 14470844400 14560170600 14834890800 15724984248 16021682064 16279699950 16380191925 16689252150 17472204720 17690607279 19656230310 20027102580 21706266600 21840255900 22252336200 23587476372 25033878225 26047519920 26208307080 26702803440 29120341200 29484345465 31449968496 32559399900 32760383850 33378504300 35381214558 39312460620 40054205160 43412533200 43680511800 44504672400 47174952744 49140575775 50067756450 52416614160 53071821837 58968690930 65118799800 65520767700 66757008600 70762429116 78624921240 80108410320 87361023600 88453036395 94349905488 98281151550 100135512900 106143643674 117937381860 130237599600 131041535400 133514017200 141524858232 147421727325 157249842480 176906072790 196562303100 200271025800 212287287348 235874763720 262083070800 265359109185 283049716464 294843454650 353812145580 393124606200 400542051600 424574574696 442265181975 471749527440 530718218370 589686909300 707624291160 786249212400 849149149392 884530363950 1061436436740 1179373818600 1326795545925 1415248582320 1769060727900 2122872873480 2358747637200 2653591091850 3538121455800 4245745746960 5307182183700 7076242911600 10614364367400 21228728734800
• Sum of all divisors σ(n): 78440645548800
• Sum of proper divisors (its aliquot sum) s(n): 57211916814000
• 21228728734800 is an abundant number, because the sum of its proper divisors (57211916814000) is greater than itself. Its abundance is 35983188079200

Bases of 21228728734800

• Binary: 100110100111010110010110101011101010001010000₂
• Hexadecimal: 0x134EB2D5D450
• Base-36: 7IWCCZ900

Squares and roots of 21228728734800

• 21228728734800 squared (21228728734800²) is 450658923695723208731040000
• 21228728734800 cubed (21228728734800³) is 9566916043053439893055887092688192000000
• The square root of 21228728734800 is 4607464.4583328041
• The cube root of 21228728734800 is 27689.0461951765

Scales and comparisons

• 21,228,728,734,800 seconds is equal to 675,007 years, 47 weeks, 1 day, 21 hours.
• To count from 1 to 21,228,728,734,800 would take you about one million, six hundred eighty-seven thousand, five hundred nineteen 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 21228728734800 cubic inches would be around 2307.4 feet tall.

Recreational maths with 21228728734800

• 21228728734800 backwards is 00843782782212
• 21228728734800 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21228728734800's digits is 54
• More coming soon!