991668990000

Names of 991668990000

• Cardinal: 991668990000 can be written as Nine hundred ninety-one billion, six hundred sixty-eight million, nine hundred ninety thousand.

Scientific notation

• Scientific notation: 9.9166899 × 10¹¹

Factors of 991668990000

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 814

Divisors of 991668990000

• Number of divisors d(n): 800
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 17 20 24 25 26 30 34 39 40 48 50 51 52 60 65 68 75 78 80 85 100 102 104 120 125 130 136 150 156 170 195 200 204 208 221 240 250 255 260 272 300 312 325 340 373 375 390 400 401 408 425 442 500 510 520 600 624 625 650 663 680 746 750 780 802 816 850 884 975 1000 1020 1040 1105 1119 1200 1203 1250 1275 1300 1326 1360 1492 1500 1560 1604 1625 1700 1768 1865 1875 1950 2000 2005 2040 2125 2210 2238 2406 2500 2550 2600 2652 2984 3000 3120 3208 3250 3315 3400 3536 3730 3750 3900 4010 4080 4250 4420 4476 4812 4849 4875 5000 5100 5200 5213 5304 5525 5595 5968 6000 6015 6341 6375 6416 6500 6630 6800 6817 7460 7500 7800 8020 8125 8500 8840 8952 9325 9624 9698 9750 10000 10025 10200 10426 10608 10625 11050 11190 12030 12682 12750 13000 13260 13634 14547 14920 15000 15600 15639 16040 16250 16575 17000 17680 17904 18650 19023 19248 19396 19500 20050 20400 20451 20852 21250 22100 22380 24060 24245 24375 25364 25500 26000 26065 26520 27268 27625 27975 29094 29840 30000 30075 31278 31705 31875 32080 32500 33150 34000 34085 37300 38046 38792 39000 40100 40902 41704 42500 44200 44760 46625 48120 48490 48750 50125 50728 51000 52130 53040 54536 55250 55950 58188 60150 62556 63410 63750 65000 66300 68170 72735 74600 76092 77584 78000 78195 80200 81804 82433 82875 83408 85000 88400 88621 89520 93250 95115 96240 96980 97500 100250 101456 102000 102255 104260 109072 110500 111900 116376 120300 121225 125112 126820 127500 130000 130325 132600 136340 138125 139875 145470 149200 149573 150375 152184 156390 158525 160400 163608 164866 165750 170000 170425 177242 186500 190230 193960 195000 200500 204510 208520 221000 223800 232752 233125 240600 242450 247299 250224 250625 253640 255000 260650 265200 265863 272680 276250 279750 290940 299146 300750 304368 312780 317050 327216 329732 331500 340850 354484 363675 373000 380460 387920 390000 390975 401000 409020 412165 414375 417040 442000 443105 447600 448719 466250 475575 481200 484900 494598 501250 507280 510000 511275 521300 531726 545360 552500 559500 581880 598292 601500 606125 625560 634100 651625 659464 663000 681700 699375 708968 727350 746000 747865 751875 760920 781950 792625 802000 818040 824330 828750 852125 886210 897438 932500 951150 969800 989196 1002500 1022550 1042600 1063452 1105000 1119000 1163760 1196584 1203000 1212250 1236495 1251120 1268200 1303250 1318928 1326000 1329315 1363400 1398750 1417936 1454700 1495730 1503750 1521840 1563900 1585250 1636080 1648660 1657500 1704250 1772420 1794876 1818375 1865000 1902300 1939600 1944449 1954875 1978392 2005000 2045100 2060825 2085200 2126904 2210000 2215525 2238000 2243595 2377875 2393168 2406000 2424500 2472990 2536400 2542741 2556375 2606500 2658630 2726800 2797500 2909400 2991460 3007500 3030625 3127800 3170500 3258125 3297320 3315000 3408500 3544840 3589752 3636750 3730000 3739325 3804600 3888898 3909750 3956784 3963125 4010000 4090200 4121650 4253808 4260625 4431050 4487190 4755750 4849000 4945980 5085482 5112750 5213000 5317260 5595000 5818800 5833347 5982920 6015000 6061250 6182475 6255600 6341000 6516250 6594640 6630000 6646575 6817000 7089680 7179504 7273500 7478650 7609200 7628223 7777796 7819500 7926250 8180400 8243300 8521250 8862100 8974380 9091875 9511500 9698000 9722245 9774375 9891960 10170964 10225500 10304125 10426000 10634520 11077625 11190000 11217975 11666694 11889375 11965840 12030000 12122500 12364950 12682000 12713705 12781875 13032500 13293150 13634000 14547000 14957300 15256446 15555592 15639000 15852500 16486600 17042500 17724200 17948760 18183750 18696625 19023000 19444490 19548750 19783920 20341928 20451000 20608250 21269040 22155250 22435950 23333388 23778750 24245000 24729900 25427410 25563750 26065000 26586300 29094000 29166735 29914600 30512892 30912375 31111184 31278000 31705000 32973200 33055633 33232875 34085000 35448400 35897520 36367500 37393250 38046000 38141115 38888980 39097500 40683856 40902000 41216500 44310500 44871900 46666776 47557500 48490000 48611225 49459800 50854820 51127500 51520625 52130000 53172600 55388125 56089875 58333470 59829200 61025784 61824750 63410000 63568525 66111266 66465750 68170000 72735000 74786500 76282230 77777960 78195000 82433000 88621000 89743800 93333552 93483125 95115000 97222450 98919600 99166899 101709640 102255000 103041250 106345200 110776250 112179750 116666940 122051568 123649500 127137050 132222532 132931500 145470000 145833675 149573000 152564460 154561875 155555920 156390000 164866000 165278165 166164375 177242000 179487600 186966250 190230000 190705575 194444900 198333798 203419280 204510000 206082500 221552500 224359500 233333880 243056125 247299000 254274100 264445064 265863000 280449375 291667350 299146000 305128920 309123750 317842625 330556330 332328750 373932500 381411150 388889800 396667596 412165000 443105000 448719000 466667760 486112250 494598000 495834495 508548200 528890128 531726000 560898750 583334700 610257840 618247500 635685250 661112660 664657500 729168375 747865000 762822300 777779600 793335192 824330000 826390825 886210000 897438000 953527875 972224500 991668990 1017096400 1121797500 1166669400 1215280625 1236495000 1271370500 1322225320 1329315000 1458336750 1495730000 1525644600 1586670384 1589213125 1652781650 1907055750 1944449000 1983337980 2243595000 2333338800 2430561250 2472990000 2479172475 2542741000 2644450640 2658630000 2916673500 3051289200 3178426250 3305563300 3645841875 3814111500 3888898000 3966675960 4131954125 4487190000 4767639375 4861122500 4958344950 5085482000 5833347000 6356852500 6611126600 7291683750 7628223000 7933351920 8263908250 9535278750 9722245000 9916689900 11666694000 12395862375 12713705000 13222253200 14583367500 15256446000 16527816500 19070557500 19444490000 19833379800 20659770625 24791724750 25427410000 29166735000 33055633000 38141115000 39666759600 41319541250 49583449500 58333470000 61979311875 66111266000 76282230000 82639082500 99166899000 123958623750 165278165000 198333798000 247917247500 330556330000 495834495000 991668990000
• Sum of all divisors σ(n): 3669196031424
• Sum of proper divisors (its aliquot sum) s(n): 2677527041424
• 991668990000 is an abundant number, because the sum of its proper divisors (2677527041424) is greater than itself. Its abundance is 1685858051424

Bases of 991668990000

• Binary: 1110011011100100000100111111000000110000₂
• Hexadecimal: 0xE6E413F030
• Base-36: CNKE41TC

Squares and roots of 991668990000

• 991668990000 squared (991668990000²) is 983407385727620100000000
• 991668990000 cubed (991668990000³) is 975214608963049439670699000000000000
• The square root of 991668990000 is 995825.7829560349
• The cube root of 991668990000 is 9972.1524902711

Scales and comparisons

• 991,668,990,000 seconds is equal to 31,532 years, 2 days, 8 hours, 20 minutes.
• To count from 1 to 991,668,990,000 would take you about sixty-three thousand and sixty-four 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 991668990000 cubic inches would be around 831 feet tall.

Recreational maths with 991668990000

• 991668990000 backwards is 000099866199
• The number of decimal digits it has is: 12
• The sum of 991668990000's digits is 57
• More coming soon!