21135607680

Names of 21135607680

• Cardinal: 21135607680 can be written as Twenty-one billion, one hundred thirty-five million, six hundred seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.113560768 × 10¹⁰

Factors of 21135607680

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 118

Divisors of 21135607680

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 17 20 22 24 30 32 33 34 37 40 43 44 48 51 55 60 64 66 68 74 80 85 86 88 96 102 110 111 120 128 129 132 136 148 160 165 170 172 176 185 187 192 204 215 220 222 240 255 258 264 272 296 320 330 340 344 352 370 374 384 407 408 430 440 444 473 480 510 516 528 544 555 561 592 629 640 645 660 680 688 704 731 740 748 814 816 860 880 888 935 946 960 1020 1032 1056 1088 1110 1122 1184 1221 1258 1290 1320 1360 1369 1376 1408 1419 1462 1480 1496 1591 1628 1632 1720 1760 1776 1870 1887 1892 1920 2035 2040 2064 2112 2176 2193 2220 2244 2365 2368 2442 2516 2580 2640 2720 2738 2752 2805 2838 2924 2960 2992 3145 3182 3256 3264 3440 3520 3552 3655 3740 3774 3784 4070 4080 4107 4128 4224 4386 4440 4488 4730 4736 4773 4884 5032 5160 5280 5440 5476 5504 5610 5676 5848 5920 5984 6105 6290 6364 6512 6528 6845 6880 6919 7040 7095 7104 7310 7480 7548 7568 7955 8041 8140 8160 8214 8256 8772 8880 8976 9435 9460 9546 9768 10064 10320 10560 10880 10952 10965 11220 11352 11696 11840 11968 12210 12580 12728 13024 13690 13760 13838 14190 14208 14620 14960 15059 15096 15136 15910 16082 16280 16320 16428 16512 17501 17544 17760 17952 18870 18920 19092 19536 20128 20535 20640 20757 21120 21904 21930 22440 22704 23273 23392 23680 23865 23936 24123 24420 25160 25456 26048 27047 27380 27520 27676 28380 29240 29920 30118 30192 30272 31820 32164 32560 32640 32856 34595 35002 35088 35520 35904 37740 37840 38184 39072 40205 40256 41070 41280 41514 43808 43860 44880 45177 45408 46546 46784 47730 48246 48840 50320 50912 52096 52503 54094 54760 55352 56760 58480 58867 59840 60236 60384 60544 63640 64328 65120 65712 69190 69819 70004 70176 71040 71808 75295 75480 75680 76368 78144 80410 80512 81141 82140 82560 83028 87505 87616 87720 89760 90354 90816 93092 93568 95460 96492 97680 100640 101824 103785 105006 108188 109520 110704 113520 116365 116960 117734 119680 120472 120615 120768 127280 128656 130240 131424 135235 138380 139638 140008 140352 150590 150960 151360 152736 156288 160820 162282 164280 166056 175010 175232 175440 176601 179520 180708 181632 186184 190920 192984 195360 201280 203648 207570 210012 216376 219040 221408 225885 227040 232730 233920 235468 240944 241230 241536 254560 256003 257312 260480 262515 262848 270470 276760 279276 280016 280704 294335 297517 301180 301920 302720 305472 321640 324564 328560 332112 349095 350020 350880 353202 359040 361416 372368 381840 385968 390720 402560 405705 415140 420024 432752 438080 442816 451770 454080 465460 467840 470936 481888 482460 509120 512006 514624 525030 525696 540940 553520 558552 560032 588670 595034 602360 603840 610944 643280 647537 649128 657120 664224 698190 700040 701760 706404 722832 744736 763680 768009 771936 781440 811410 830280 840048 865504 876160 883005 885632 892551 903540 908160 930920 941872 963776 964920 1000739 1018240 1024012 1029248 1050060 1081880 1107040 1117104 1120064 1177340 1190068 1204720 1207680 1280015 1286560 1295074 1298256 1314240 1328448 1396380 1400080 1403520 1412808 1445664 1487585 1489472 1527360 1536018 1543872 1622820 1660560 1680096 1731008 1766010 1785102 1807080 1861840 1883744 1927552 1929840 1942611 2001478 2048024 2100120 2163760 2214080 2234208 2240128 2354680 2380136 2409440 2560030 2573120 2590148 2596512 2628480 2656896 2792760 2800160 2825616 2891328 2975170 2978944 3002217 3054720 3072036 3087744 3237685 3245640 3321120 3360192 3462016 3532020 3570204 3614160 3723680 3767488 3840045 3859680 3885222 4002956 4096048 4200240 4327520 4428160 4462755 4468416 4709360 4760272 4818880 5003695 5120060 5146240 5180296 5193024 5585520 5600320 5651232 5782656 5950340 6004434 6144072 6475370 6491280 6642240 6720384 7064040 7140408 7228320 7447360 7534976 7680090 7719360 7770444 8005912 8192096 8400480 8655040 8925510 8936832 9418720 9520544 9637760 9713055 10007390 10240120 10360592 10386048 11008129 11171040 11200640 11302464 11900680 12008868 12288144 12950740 12982560 13284480 14128080 14280816 14456640 14894720 15011085 15360180 15438720 15540888 16011824 16384192 16800960 17310080 17851020 18837440 19041088 19426110 20014780 20480240 20721184 22016258 22342080 22604928 23801360 24017736 24576288 25901480 25965120 28256160 28561632 28913280 30022170 30720360 31081776 32023648 32768384 33024387 33601920 35702040 37674880 38082176 38852220 40029560 40960480 41442368 44032516 44684160 47602720 48035472 49152576 51802960 51930240 55040645 56512320 57123264 60044340 61440720 62163552 64047296 66048774 71404080 77704440 80059120 81920960 82884736 88065032 95205440 96070944 98305152 103605920 110081290 113024640 114246528 120088680 122881440 124327104 128094592 132097548 142808160 155408880 160118240 163841920 165121935 176130064 190410880 192141888 207211840 220162580 240177360 245762880 248654208 264195096 285616320 310817760 320236480 330243870 352260128 384283776 414423680 440325160 480354720 491525760 528390192 571232640 621635520 640472960 660487740 704520256 880650320 960709440 1056780384 1243271040 1320975480 1409040512 1761300640 1921418880 2113560768 2641950960 3522601280 4227121536 5283901920 7045202560 10567803840 21135607680
• Sum of all divisors σ(n): 81837423360
• Sum of proper divisors (its aliquot sum) s(n): 60701815680
• 21135607680 is an abundant number, because the sum of its proper divisors (60701815680) is greater than itself. Its abundance is 39566208000

Bases of 21135607680

• Binary: 10011101011110001111100011110000000₂
• Hexadecimal: 0x4EBC7C780
• Base-36: 9PJLF9C

Squares and roots of 21135607680

• 21135607680 squared (21135607680²) is 446713912002874982400
• 21135607680 cubed (21135607680³) is 9441569989290808660093304832000
• The square root of 21135607680 is 145380.9054862433
• The cube root of 21135607680 is 2764.8500313787

Scales and comparisons

• 21,135,607,680 seconds is equal to 672 years, 2 weeks, 3 days, 2 hours, 8 minutes.
• To count from 1 to 21,135,607,680 would take you about one thousand, three hundred forty-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 21135607680 cubic inches would be around 230.4 feet tall.

Recreational maths with 21135607680

• 21135607680 backwards is 08670653112
• The number of decimal digits it has is: 11
• The sum of 21135607680's digits is 39
• More coming soon!