21261310485840

Names of 21261310485840

• Cardinal: 21261310485840 can be written as Twenty-one trillion, two hundred sixty-one billion, three hundred ten million, four hundred eighty-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.126131048584 × 10¹³

Factors of 21261310485840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 310

Divisors of 21261310485840

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 27 30 36 38 40 45 48 54 57 60 72 76 80 81 90 95 108 114 120 135 144 152 162 171 180 190 216 228 240 243 270 281 285 304 324 342 360 380 405 432 456 486 513 540 562 570 648 684 720 729 760 810 843 855 912 972 1026 1080 1124 1140 1215 1296 1368 1405 1458 1520 1539 1620 1686 1710 1944 2052 2160 2187 2248 2280 2430 2529 2565 2736 2810 2916 3078 3240 3372 3420 3645 3888 4104 4215 4374 4496 4560 4617 4860 5058 5130 5339 5620 5832 6156 6480 6561 6744 6840 7290 7587 7695 8208 8430 8748 9234 9720 10116 10260 10678 10935 11240 11664 12312 12645 13122 13488 13680 13851 14580 15174 15390 16017 16860 17496 18468 19440 19683 20232 20520 21356 21870 22480 22761 23085 24624 25290 26244 26695 27702 29160 30348 30780 32034 32805 33720 34992 36936 37935 39366 40464 41040 41553 42712 43740 45522 46170 48051 50580 52488 53390 55404 58320 59049 60696 61560 64068 65610 67440 68283 69255 73872 75870 78732 78961 80085 83106 85424 87480 91044 92340 96102 98415 101160 104976 106780 110808 113805 118098 121392 123120 124659 128136 131220 136566 138510 144153 151740 157464 157922 160170 166212 174960 177147 182088 184680 192204 196830 202320 204849 207765 213560 221616 227610 236196 236883 240255 249318 256272 262440 273132 277020 288306 295245 303480 314928 315844 320340 332424 341415 354294 364176 369360 373977 384408 393660 394805 409698 415530 427120 432459 455220 472392 473766 480510 498636 524880 546264 554040 576612 590490 606960 614547 623295 631688 640680 664848 682830 708588 710649 720765 747954 768816 787320 789610 819396 831060 864918 885735 910440 944784 947532 961020 997272 1024245 1092528 1108080 1121931 1153224 1180980 1184415 1229094 1246590 1263376 1281360 1297377 1365660 1417176 1421298 1441530 1495908 1500259 1574640 1579220 1638792 1662120 1729836 1771470 1820880 1843641 1869885 1895064 1922040 1994544 2048490 2131947 2162295 2243862 2306448 2361960 2368830 2458188 2493180 2594754 2731320 2834352 2842596 2883060 2991816 3000518 3072735 3158440 3277584 3324240 3365793 3459672 3542940 3553245 3687282 3739770 3790128 3844080 3892131 4096980 4263894 4324590 4487724 4500777 4723920 4737660 4916376 4986360 5189508 5462640 5530923 5609655 5685192 5766120 5983632 6001036 6145470 6316880 6395841 6486885 6731586 6919344 7085880 7106490 7374564 7479540 7501295 7784262 8193960 8527788 8649180 8975448 9001554 9218205 9475320 9832752 9972720 10379016 10659735 11061846 11219310 11370384 11532240 11676393 12002072 12290940 12791682 12973770 13463172 13502331 14171760 14212980 14749128 14959080 15002590 15568524 16387920 16592769 16828965 17055576 17298360 17950896 18003108 18436410 18950640 19187523 19460655 20758032 21319470 22123692 22438620 22503885 23352786 24004144 24581880 25583364 25947540 26926344 27004662 27654615 28425960 29498256 29918160 30005180 31137048 31979205 33185538 33657930 34111152 34596720 35029179 36006216 36872820 38375046 38921310 40506993 42638940 44247384 44877240 45007770 46705572 49163760 49778307 51166728 51895080 53852688 54009324 55309230 56851920 57562569 58381965 60010360 62274096 63958410 66371076 67315860 67511655 70058358 72012432 73745640 76750092 77842620 81013986 82963845 85277880 88494768 89754480 90015540 93411144 95937615 99556614 102333456 103790160 105087537 108018648 110618460 115125138 116763930 120020720 121520979 127916820 132742152 134631720 135023310 140116716 147491280 153500184 155685240 162027972 165927690 170555760 172687707 175145895 180031080 186822288 191875230 199113228 202534965 210175074 216037296 221236920 230250276 233527860 243041958 248891535 255833640 265484304 269263440 270046620 280233432 287812845 307000368 311370480 315262611 324055944 331855380 345375414 350291790 360062160 364562937 383750460 398226456 405069930 420350148 442473840 460500552 467055720 486083916 497783070 511667280 518063121 525437685 540093240 560466864 575625690 607604895 630525222 648111888 663710760 690750828 700583580 729125874 767500920 796452912 810139860 840700296 863438535 921001104 934111440 945787833 972167832 995566140 1036126242 1050875370 1080186480 1093688811 1151251380 1215209790 1261050444 1327421520 1381501656 1401167160 1458251748 1535001840 1554189363 1576313055 1620279720 1681400592 1726877070 1822814685 1891575666 1944335664 1991132280 2072252484 2101750740 2187377622 2302502760 2430419580 2522100888 2590315605 2763003312 2802334320 2916503496 3108378726 3152626110 3240559440 3281066433 3453754140 3645629370 3783151332 3982264560 4144504968 4203501480 4374755244 4605005520 4662568089 4728939165 4860839160 5044201776 5180631210 5468444055 5833006992 6216757452 6305252220 6562132866 6907508280 7291258740 7566302664 7770946815 8289009936 8407002960 8749510488 9325136178 9457878330 9721678320 9843199299 10361262420 10936888110 12433514904 12610504440 13124265732 13815016560 13987704267 14582517480 15132605328 15541893630 16405332165 17499020976 18650272356 18915756660 19686398598 20722524840 21873776220 23312840445 24867029808 25221008880 26248531464 27975408534 29165034960 29529597897 31083787260 32810664330 37300544712 37831513320 39372797196 41445049680 43747552440 46625680890 49215996495 52497062928 55950817068 59059195794 62167574520 65621328660 69938521335 74601089424 75663026640 78745594392 87495104880 88588793691 93251361780 98431992990 111901634136 118118391588 124335149040 131242657320 139877042670 147647989485 157491188784 177177587382 186502723560 196863985980 223803268272 236236783176 262485314640 265766381073 279754085340 295295978970 354355174764 373005447120 393727971960 442943968455 472473566352 531532762146 559508170680 590591957940 708710349528 787455943920 885887936910 1063065524292 1119016341360 1181183915880 1328831905365 1417420699056 1771775873820 2126131048584 2362367831760 2657663810730 3543551747640 4252262097168 5315327621460 7087103495280 10630655242920 21261310485840
• Sum of all divisors σ(n): 78329993851200
• Sum of proper divisors (its aliquot sum) s(n): 57068683365360
• 21261310485840 is an abundant number, because the sum of its proper divisors (57068683365360) is greater than itself. Its abundance is 35807372879520

Bases of 21261310485840

• Binary: 100110101011001001000110110111110010101010000₂
• Hexadecimal: 0x135648DBE550
• Base-36: 7JBB7B900

Squares and roots of 21261310485840

• 21261310485840 squared (21261310485840²) is 452043323575289936840505600
• 21261310485840 cubed (21261310485840³) is 9611033455585276012865273032927240704000
• The square root of 21261310485840 is 4610998.8598827477
• The cube root of 21261310485840 is 27703.2046259785

Scales and comparisons

• 21,261,310,485,840 seconds is equal to 676,043 years, 47 weeks, 1 day, 11 hours, 24 minutes.
• To count from 1 to 21,261,310,485,840 would take you about one million, six hundred ninety thousand, one hundred nine 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 21261310485840 cubic inches would be around 2308.6 feet tall.

Recreational maths with 21261310485840

• 21261310485840 backwards is 04858401316212
• 21261310485840 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21261310485840's digits is 45
• More coming soon!