21306327840

Names of 21306327840

• Cardinal: 21306327840 can be written as Twenty-one billion, three hundred six million, three hundred twenty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.130632784 × 10¹⁰

Factors of 21306327840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3238

Divisors of 21306327840

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 23 24 28 29 30 32 35 36 40 42 45 46 48 56 58 60 63 69 70 72 80 84 87 90 92 96 105 112 115 116 120 126 138 140 144 145 160 161 168 174 180 184 203 207 210 224 230 232 240 252 261 276 280 288 290 315 322 336 345 348 360 368 406 414 420 435 460 464 480 483 504 522 552 560 580 609 630 644 667 672 690 696 720 736 805 812 828 840 870 920 928 966 1008 1015 1035 1044 1104 1120 1160 1218 1260 1288 1305 1334 1380 1392 1440 1449 1610 1624 1656 1680 1740 1827 1840 1932 2001 2016 2030 2070 2088 2208 2320 2415 2436 2520 2576 2610 2668 2760 2784 2898 3045 3169 3220 3248 3312 3335 3360 3480 3654 3680 3864 4002 4060 4140 4176 4640 4669 4830 4872 5040 5152 5220 5336 5520 5796 6003 6090 6338 6440 6496 6624 6670 6960 7245 7308 7728 8004 8120 8280 8352 9135 9338 9507 9660 9744 10005 10080 10440 10672 11040 11592 12006 12180 12676 12880 13340 13920 14007 14490 14616 15456 15845 16008 16240 16560 18270 18676 19014 19320 19488 20010 20880 21344 22183 23184 23345 24012 24360 25352 25760 26680 28014 28521 28980 29232 30015 31690 32016 32480 33120 36540 37352 38028 38640 40020 41760 42021 44366 46368 46690 47535 48024 48720 50704 53360 56028 57042 57960 58464 60030 63380 64032 66549 70035 72887 73080 74704 76056 77280 80040 84042 88732 91901 93380 95070 96048 97440 101408 106720 110915 112056 114084 115920 120060 126760 133098 140070 142605 145774 146160 149408 152112 160080 168084 177464 183802 186760 190140 192096 199647 210105 218661 221830 224112 228168 231840 240120 253520 266196 275703 280140 285210 291548 292320 304224 320160 332745 336168 354928 364435 367604 373520 380280 399294 420210 437322 443660 448224 456336 459505 480240 507040 510209 532392 551406 560280 570420 583096 643307 655983 665490 672336 709856 728870 735208 747040 760560 798588 827109 840420 874644 887320 912672 919010 960480 998235 1020418 1064784 1093305 1102812 1120560 1140840 1166192 1286614 1311966 1330980 1344672 1378515 1457740 1470416 1521120 1530627 1597176 1654218 1680840 1749288 1774640 1838020 1929921 1996470 2040836 2113723 2129568 2186610 2205624 2241120 2281680 2332384 2551045 2573228 2623932 2661960 2757030 2915480 2940832 3061254 3194352 3216535 3279915 3308436 3361680 3498576 3549280 3676040 3859842 3992940 4081672 4135545 4227446 4373220 4411248 4563360 4591881 5102090 5146456 5247864 5323920 5514060 5789763 5830960 6122508 6341169 6388704 6433070 6559830 6616872 6723360 6997152 7352080 7653135 7719684 7985880 8163344 8271090 8454892 8746440 8822496 9183762 9649605 10204180 10292912 10495728 10568615 10647840 11028120 11579526 11661920 12245016 12682338 12866140 13119660 13233744 14704160 14796061 15306270 15439368 15971760 16326688 16542180 16909784 17492880 18367524 19023507 19299210 20408360 20585824 20991456 21137230 22056240 22959405 23159052 24490032 25364676 25732280 26239320 26467488 28948815 29592122 30612540 30878736 31705845 31943520 33084360 33819568 34985760 36735048 38047014 38598420 40816720 42274460 44112480 44388183 45918810 46318104 48980064 50729352 51464560 52478640 57897630 59184244 61225080 61757472 63411690 66168720 67639136 73470096 73980305 76094028 77196840 81633440 84548920 88776366 91837620 92636208 95117535 101458704 102929120 104957280 115795260 118368488 122450160 126823380 132337440 133164549 146940192 147960610 152188056 154393680 169097840 177552732 183675240 185272416 190235070 202917408 221940915 231590520 236736976 244900320 253646760 266329098 295921220 304376112 308787360 338195680 355105464 367350480 380470140 443881830 463181040 473473952 507293520 532658196 591842440 608752224 665822745 710210928 734700960 760940280 887763660 926362080 1014587040 1065316392 1183684880 1331645490 1420421856 1521880560 1775527320 2130632784 2367369760 2663290980 3043761120 3551054640 4261265568 5326581960 7102109280 10653163920 21306327840
• Sum of all divisors σ(n): 89725708800
• Sum of proper divisors (its aliquot sum) s(n): 68419380960
• 21306327840 is an abundant number, because the sum of its proper divisors (68419380960) is greater than itself. Its abundance is 47113053120

Bases of 21306327840

• Binary: 10011110101111101001100001100100000₂
• Hexadecimal: 0x4F5F4C320
• Base-36: 9SD8JS0

Squares and roots of 21306327840

• 21306327840 squared (21306327840²) is 453959606025559065600
• 21306327840 cubed (21306327840³) is 9672212192097800870957666304000
• The square root of 21306327840 is 145966.8724060363
• The cube root of 21306327840 is 2772.2743180359

Scales and comparisons

• 21,306,327,840 seconds is equal to 677 years, 24 weeks, 5 days, 24 minutes.
• To count from 1 to 21,306,327,840 would take you about one thousand, three hundred fifty-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 21306327840 cubic inches would be around 231 feet tall.

Recreational maths with 21306327840

• 21306327840 backwards is 04872360312
• 21306327840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21306327840's digits is 36
• More coming soon!