81630201600

Names of 81630201600

• Cardinal: 81630201600 can be written as Eighty-one billion, six hundred thirty million, two hundred one thousand, six hundred.

Scientific notation

• Scientific notation: 8.16302016 × 10¹⁰

Factors of 81630201600

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 99

Divisors of 81630201600

• Number of divisors d(n): 1296
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 23 24 25 27 30 32 36 38 40 45 46 47 48 50 54 57 60 64 69 72 75 76 80 90 92 94 95 96 100 108 114 115 120 128 135 138 141 144 150 152 160 171 180 184 188 190 192 200 207 216 225 228 230 235 240 256 270 276 282 285 288 300 304 320 342 345 360 368 376 380 384 400 414 423 432 437 450 456 460 470 475 480 513 529 540 552 564 570 575 576 600 608 621 640 675 684 690 705 720 736 752 760 768 800 828 846 855 864 874 893 900 912 920 940 950 960 1026 1035 1058 1080 1081 1104 1128 1140 1150 1152 1175 1200 1216 1242 1269 1280 1311 1350 1368 1380 1410 1425 1440 1472 1504 1520 1587 1600 1656 1692 1710 1725 1728 1748 1786 1800 1824 1840 1880 1900 1920 2052 2070 2115 2116 2160 2162 2185 2208 2256 2280 2300 2304 2350 2400 2432 2484 2538 2565 2622 2645 2679 2700 2736 2760 2820 2850 2880 2944 3008 3040 3105 3174 3200 3243 3312 3384 3420 3450 3456 3496 3525 3572 3600 3648 3680 3760 3800 3840 3933 4104 4140 4230 4232 4275 4320 4324 4370 4416 4465 4512 4560 4600 4700 4761 4800 4864 4968 5076 5130 5175 5244 5290 5358 5400 5405 5472 5520 5640 5700 5760 5888 6016 6080 6210 6345 6348 6400 6486 6555 6624 6768 6840 6900 6912 6992 7050 7144 7200 7296 7360 7520 7600 7866 7935 8037 8208 8280 8460 8464 8550 8640 8648 8740 8832 8930 9024 9120 9200 9400 9522 9600 9729 9936 10051 10152 10260 10350 10488 10575 10580 10716 10800 10810 10925 10944 11040 11280 11400 11520 11799 12032 12160 12420 12690 12696 12825 12972 13110 13225 13248 13395 13536 13680 13800 13984 14100 14283 14288 14400 14592 14720 15040 15200 15525 15732 15870 16074 16215 16416 16560 16920 16928 17100 17280 17296 17480 17664 17860 18048 18240 18400 18800 19044 19200 19458 19665 19872 20102 20304 20520 20539 20700 20976 21150 21160 21432 21600 21620 21850 21888 22080 22325 22560 22800 23598 23805 24111 24320 24840 24863 25380 25392 25650 25944 26220 26450 26496 26790 27025 27072 27360 27600 27968 28200 28566 28576 28800 29187 29440 30080 30153 30400 31050 31464 31725 31740 32148 32430 32775 32832 33120 33840 33856 34200 34560 34592 34960 35720 36096 36480 36800 37600 38088 38916 39330 39675 39744 40185 40204 40608 41040 41078 41400 41952 42300 42320 42864 43200 43240 43700 43776 44160 44650 45120 45600 47196 47610 48222 48645 49680 49726 50255 50760 50784 51300 51888 52440 52900 52992 53580 54050 54144 54720 55200 55936 56400 57132 57152 57600 58374 58995 60160 60306 60800 61617 62100 62928 63450 63480 64296 64860 65550 65664 66240 66975 67680 67712 68400 69184 69920 71415 71440 72960 73600 74589 75200 76176 77832 78660 79350 79488 80370 80408 81075 81216 82080 82156 82800 83904 84600 84640 85728 86400 86480 87400 88320 89300 90240 90459 91200 94392 95220 96444 97290 98325 99360 99452 100510 101520 101568 102600 102695 103776 104880 105800 107160 108100 108288 109440 110400 111872 112800 114264 114304 116748 117990 119025 120555 120612 121600 123234 124200 124315 125856 126900 126960 128592 129720 131100 131328 132480 133950 135360 135424 136800 138368 139840 142830 142880 145935 147200 149178 150400 150765 152352 155664 157320 158700 158976 160740 160816 162150 162432 164160 164312 165600 167808 169200 169280 171456 172800 172960 174800 178600 180480 180918 182400 184851 188784 190440 192888 194580 196650 198720 198904 200925 201020 203040 203136 205200 205390 207552 209760 211600 214320 216200 218880 220800 223767 225600 228528 228608 233496 235980 238050 241110 241224 243225 246468 248400 248630 251275 251712 253800 253920 257184 259440 262200 264960 267900 270720 271377 273600 276736 279680 285660 285760 291870 294975 298356 300800 301530 304704 308085 311328 314640 317400 321480 321632 324300 324864 328320 328624 331200 335616 338400 338560 342912 345920 349600 357075 357200 361836 364800 369702 372945 377568 380880 385776 389160 393300 397440 397808 401850 402040 406080 406272 410400 410780 415104 419520 423200 428640 432400 441600 447534 451200 452295 457056 466992 471960 472397 476100 482220 482448 486450 492936 496800 497260 502550 503424 507600 507840 513475 514368 518880 524400 535800 541440 542754 547200 554553 559360 571320 571520 583740 589950 596712 602775 603060 609408 616170 621575 622656 629280 634800 642960 643264 648600 656640 657248 662400 671301 676800 677120 685824 691840 699200 714150 714400 723672 729675 739404 745890 753825 755136 761760 771552 778320 786600 794880 795616 803700 804080 812160 820800 821560 830208 839040 846400 857280 864800 895068 902400 904590 914112 924255 933984 943920 944794 952200 964440 964896 972900 985872 993600 994520 1005100 1006848 1015200 1015680 1026950 1028736 1037760 1048800 1071600 1085508 1094400 1109106 1118835 1142640 1143040 1167480 1179900 1193424 1205550 1206120 1218816 1232340 1243150 1245312 1258560 1269600 1285920 1286528 1297200 1314496 1324800 1342602 1353600 1356885 1383680 1398400 1417191 1428300 1428800 1447344 1459350 1478808 1491780 1507650 1510272 1523520 1540425 1543104 1556640 1573200 1591232 1607400 1608160 1624320 1641600 1643120 1678080 1692800 1714560 1729600 1790136 1809180 1828224 1848510 1864725 1867968 1887840 1889588 1904400 1928880 1929792 1945800 1971744 1987200 1989040 2010200 2030400 2031360 2053900 2057472 2075520 2097600 2143200 2171016 2218212 2237670 2261475 2285280 2334960 2359800 2361985 2386848 2411100 2412240 2464680 2486300 2490624 2517120 2539200 2571840 2573056 2594400 2628992 2685204 2707200 2713770 2772765 2796800 2834382 2856600 2857600 2894688 2918700 2957616 2983560 3015300 3020544 3047040 3080850 3086208 3113280 3146400 3182464 3214800 3216320 3283200 3286240 3356505 3385600 3429120 3459200 3580272 3618360 3656448 3697020 3729450 3735936 3775680 3779176 3808800 3857760 3859584 3891600 3943488 3974400 3978080 4020400 4060800 4107800 4151040 4195200 4251573 4286400 4342032 4436424 4475340 4522950 4570560 4621275 4669920 4719600 4723970 4773696 4822200 4824480 4929360 4972600 5034240 5078400 5143680 5188800 5257984 5370408 5427540 5545530 5594175 5668764 5713200 5715200 5789376 5837400 5915232 5967120 6030600 6094080 6161700 6172416 6226560 6292800 6364928 6429600 6432640 6572480 6713010 6784425 6918400 7085955 7160544 7236720 7394040 7458900 7471872 7551360 7558352 7617600 7715520 7719168 7783200 7886976 7956160 8040800 8121600 8215600 8390400 8503146 8572800 8684064 8872848 8950680 9045900 9141120 9242550 9339840 9439200 9447940 9547392 9644400 9648960 9858720 9945200 10156800 10287360 10377600 10740816 10855080 11091060 11188350 11337528 11426400 11578752 11674800 11809925 11830464 11934240 12061200 12323400 12453120 12585600 12754719 12859200 12865280 13144960 13426020 13568850 13863825 14171910 14321088 14473440 14788080 14917800 15102720 15116704 15235200 15431040 15566400 15773952 15912320 16081600 16431200 16782525 17006292 17145600 17368128 17745696 17901360 18091800 18282240 18485100 18679680 18878400 18895880 19094784 19288800 19297920 19717440 19890400 20755200 21257865 21481632 21710160 22182120 22376700 22675056 22852800 23157504 23349600 23619850 23660928 23868480 24122400 24646800 25171200 25509438 25718400 26289920 26852040 27137700 27727650 28343820 28642176 28946880 29576160 29835600 30233408 30470400 30862080 31132800 31824640 32163200 32862400 33565050 34012584 34736256 35429775 35491392 35802720 36183600 36970200 37359360 37756800 37791760 38577600 38595840 39434880 39780800 42515730 42963264 43420320 44364240 44753400 45350112 45705600 46699200 47239700 47321856 47736960 48244800 49293600 51018876 51436800 53704080 54275400 55455300 56687640 57284352 57893760 59152320 59671200 60466816 62265600 63773595 64326400 65724800 67130100 68025168 69472512 70859550 70982784 71605440 72367200 73940400 75513600 75583520 77155200 78869760 79561600 85031460 85926528 86840640 88728480 89506800 90700224 91411200 93398400 94479400 95473920 96489600 98587200 102037752 106289325 107408160 108550800 110910600 113375280 115787520 118304640 119342400 120933632 127547190 131449600 134260200 136050336 141719100 141965568 143210880 144734400 147880800 151167040 154310400 159123200 170062920 171853056 173681280 177456960 179013600 181400448 186796800 188958800 192979200 197174400 204075504 212578650 214816320 217101600 221821200 226750560 236609280 238684800 255094380 268520400 272100672 283438200 286421760 289468800 295761600 302334080 318867975 340125840 347362560 354913920 358027200 362800896 377917600 394348800 408151008 425157300 429632640 434203200 443642400 453501120 477369600 510188760 537040800 544201344 566876400 578937600 591523200 604668160 637735950 680251680 709827840 716054400 755835200 816302016 850314600 859265280 868406400 887284800 907002240 1020377520 1074081600 1088402688 1133752800 1183046400 1275471900 1360503360 1432108800 1511670400 1632604032 1700629200 1736812800 1774569600 1814004480 2040755040 2148163200 2267505600 2550943800 2721006720 3023340800 3265208064 3401258400 3549139200 4081510080 4296326400 4535011200 5101887600 5442013440 6802516800 8163020160 9070022400 10203775200 13605033600 16326040320 20407550400 27210067200 40815100800 81630201600
• Sum of all divisors σ(n): 336386803200
• Sum of proper divisors (its aliquot sum) s(n): 254756601600
• 81630201600 is an abundant number, because the sum of its proper divisors (254756601600) is greater than itself. Its abundance is 173126400000

Bases of 81630201600

• Binary: 1001100000001100010100000011100000000₂
• Hexadecimal: 0x13018A0700
• Base-36: 11I0IIO0

Squares and roots of 81630201600

• 81630201600 squared (81630201600²) is 6663489813256642560000
• 81630201600 cubed (81630201600³) is 543942016815686084711940096000000
• The square root of 81630201600 is 285709.9956249343
• The cube root of 81630201600 is 4337.9408213013

Scales and comparisons

• 81,630,201,600 seconds is equal to 2,595 years, 30 weeks, 4 days.
• To count from 1 to 81,630,201,600 would take you about five thousand, one hundred ninety-one 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 81630201600 cubic inches would be around 361.5 feet tall.

Recreational maths with 81630201600

• 81630201600 backwards is 00610203618
• 81630201600 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81630201600's digits is 27
• More coming soon!