21456501389520

Names of 21456501389520

• Cardinal: 21456501389520 can be written as Twenty-one trillion, four hundred fifty-six billion, five hundred one million, three hundred eighty-nine thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.145650138952 × 10¹³

Factors of 21456501389520

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 111

Divisors of 21456501389520

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 37 40 47 48 51 60 68 74 80 85 94 102 111 120 136 141 148 170 185 188 204 222 235 240 255 272 282 296 340 370 376 408 444 470 510 555 564 592 629 680 705 740 752 799 816 888 940 1020 1110 1128 1258 1360 1369 1410 1480 1598 1739 1776 1880 1887 2040 2209 2220 2256 2397 2516 2738 2820 2960 3145 3196 3478 3760 3774 3995 4080 4107 4418 4440 4794 5032 5217 5476 5640 6290 6392 6627 6845 6956 7548 7990 8214 8695 8836 8880 9435 9588 10064 10434 10952 11045 11280 11985 12580 12784 13254 13690 13912 15096 15980 16428 17390 17672 18870 19176 20535 20868 21904 22090 23273 23970 25160 26085 26508 27380 27824 29563 30192 31960 32856 33135 34780 35344 37553 37740 38352 41070 41736 44180 46546 47940 50320 50653 52170 53016 54760 59126 63920 64343 65712 66270 69560 69819 75106 75480 81733 82140 83472 88360 88689 93092 95880 101306 103823 104340 106032 109520 112659 116365 118252 128686 132540 139120 139638 147815 150212 150960 151959 163466 164280 176720 177378 186184 187765 191760 193029 202612 207646 208680 225318 232730 236504 245199 253265 257372 265080 279276 295630 300424 303918 311469 321715 326932 328560 349095 354756 372368 375530 386058 405224 408665 415292 417360 443445 450636 465460 473008 490398 506530 514744 519115 530160 558552 563295 591260 600848 607836 622938 643430 653864 698190 709512 751060 759795 772116 810448 817330 830584 861101 886890 901272 930920 965145 980796 1013060 1029488 1038230 1093831 1117104 1126590 1182520 1215672 1225995 1245876 1286860 1307728 1389461 1396380 1419024 1502120 1519590 1544232 1557345 1634660 1661168 1722202 1764991 1773780 1802544 1861840 1930290 1961592 2026120 2076460 2187662 2253180 2365040 2380691 2431344 2451990 2491752 2573720 2583303 2778922 2792760 3004240 3024121 3039180 3088464 3114690 3269320 3281493 3444404 3529982 3547560 3841451 3860580 3923184 4052240 4152920 4168383 4305505 4375324 4506360 4761382 4903980 4983504 5147440 5166606 5294973 5469155 5557844 5585520 6048242 6078360 6229380 6538640 6562986 6888808 6947305 7059964 7095120 7142073 7682902 7721160 8305840 8336766 8611010 8750648 8824955 9012720 9072363 9522764 9807960 10333212 10589946 10938310 11115688 11524353 11903455 12096484 12156720 12458760 12916515 13125972 13777616 13894610 14119928 14284146 15120605 15365804 15442320 16407465 16673532 17222020 17501296 17649910 18144726 19045528 19207255 19615920 20666424 20841915 21179892 21876620 22231376 23048706 23806910 24192968 24917520 25833030 26251944 26474865 27789220 28239856 28568292 30241210 30731608 32814930 33347064 34444040 35299820 35710365 36289452 38091056 38414510 40471747 41332848 41683830 42359784 43753240 45361815 46097412 47613820 48385936 51410057 51666060 52503888 52949730 55578440 57136584 57621765 60482420 61463216 65304667 65629860 66694128 68888080 70599640 71420730 72578904 76829020 80943494 83367660 84719568 87506480 90723630 92194824 95227640 102820114 103332120 105899460 111156880 111892477 114273168 115243530 120964840 121415241 130609334 131259720 141199280 142133687 142841460 145157808 153658040 154230171 161886988 166735320 181447260 184389648 190455280 195914001 202358735 205640228 206664240 211798920 223784954 230487060 241929680 242830482 257050285 261218668 262519440 284267374 285682920 307316080 308460342 323773976 326523335 333470640 335677431 362894520 391828002 404717470 411280456 423597840 426401061 447569908 460974120 485660964 514100570 522437336 559462385 568534748 571365840 607076205 616920684 647547952 653046670 671354862 710668435 725789040 771150855 783656004 809434940 822560912 852802122 895139816 921948240 971321928 979570005 1028201140 1044874672 1118924770 1137069496 1214152410 1233841368 1306093340 1342709724 1421336870 1542301710 1567312008 1618869880 1678387155 1705604244 1790279632 1902172109 1942643856 1959140010 2056402280 2132005305 2237849540 2274138992 2416272679 2428304820 2467682736 2612186680 2685419448 2842673740 3084603420 3134624016 3237739760 3356774310 3411208488 3804344218 3918280020 4112804560 4264010610 4475699080 4832545358 4856609640 5224373360 5258946419 5370838896 5685347480 5706516327 6169206840 6713548620 6822416976 7248818037 7608688436 7836560040 8528021220 8951398160 9510860545 9665090716 9713219280 10517892838 11370694960 11413032654 12081363395 12338413680 13427097240 14497636074 15217376872 15673120080 15776839257 17056042440 19021721090 19330181432 21035785676 22826065308 24162726790 26294732095 26854194480 28532581635 28995272148 30434753744 31553678514 34112084880 36244090185 38043442180 38660362864 42071571352 45652130616 48325453580 52589464190 57065163270 57990544296 63107357028 72488180370 76086884360 78884196285 84143142704 89402089123 91304261232 96650907160 105178928380 114130326540 115981088592 126214714056 144976360740 152173768720 157768392570 178804178246 193301814320 210357856760 228260653080 252429428112 268206267369 289952721480 315536785140 357608356492 420715713520 447010445615 456521306160 536412534738 579905442960 631073570280 715216712984 894020891230 1072825069476 1262147140560 1341031336845 1430433425968 1788041782460 2145650138952 2682062673690 3576083564920 4291300277904 5364125347380 7152167129840 10728250694760 21456501389520
• Sum of all divisors σ(n): 73957652121600
• Sum of proper divisors (its aliquot sum) s(n): 52501150732080
• 21456501389520 is an abundant number, because the sum of its proper divisors (52501150732080) is greater than itself. Its abundance is 31044649342560

Bases of 21456501389520

• Binary: 100111000001110111011001001001011100011010000₂
• Hexadecimal: 0x1383BB24B8D0
• Base-36: 7LSZAXQ6O

Squares and roots of 21456501389520

• 21456501389520 squared (21456501389520²) is 460381451878473690765830400
• 21456501389520 cubed (21456501389520³) is 9878175261939705760093802770536657408000
• The square root of 21456501389520 is 4632116.2970633629
• The cube root of 21456501389520 is 27787.7235572989

Scales and comparisons

• 21,456,501,389,520 seconds is equal to 682,250 years, 19 weeks, 3 days, 10 hours, 52 minutes.
• To count from 1 to 21,456,501,389,520 would take you about one million, seven hundred five thousand, six hundred twenty-five 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 21456501389520 cubic inches would be around 2315.6 feet tall.

Recreational maths with 21456501389520

• 21456501389520 backwards is 02598310565412
• 21456501389520 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21456501389520's digits is 51
• More coming soon!