21318725826720

Names of 21318725826720

• Cardinal: 21318725826720 can be written as Twenty-one trillion, three hundred eighteen billion, seven hundred twenty-five million, eight hundred twenty-six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.131872582672 × 10¹³

Factors of 21318725826720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 9746375

Divisors of 21318725826720

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 31 32 35 36 40 42 45 48 49 56 60 62 63 70 72 80 84 90 93 96 98 105 112 120 124 126 140 144 147 155 160 168 180 186 196 210 217 224 240 245 248 252 279 280 288 294 310 315 336 360 372 392 420 434 441 465 480 490 496 504 558 560 588 620 630 651 672 720 735 744 784 840 868 882 930 980 992 1008 1085 1116 1120 1176 1240 1260 1302 1395 1440 1470 1488 1519 1568 1680 1736 1764 1860 1953 1960 2016 2170 2205 2232 2352 2480 2520 2604 2790 2940 2976 3038 3255 3360 3472 3528 3720 3906 3920 4340 4410 4464 4557 4704 4960 5040 5208 5580 5880 6076 6510 6944 7056 7440 7595 7812 7840 8680 8820 8928 9114 9765 10080 10416 11160 11760 12152 13020 13671 14112 14880 15190 15624 17360 17640 18228 19530 20832 22320 22785 23520 24304 26040 27342 30380 31248 34720 35280 36456 39060 44640 45570 48608 52080 54684 60760 62496 68355 70560 72912 78120 91140 104160 109368 121520 136710 145824 156240 182280 218736 243040 273420 312480 364560 437472 546840 729120 1093680 2187360 9746327 19492654 29238981 38985308 48731635 58477962 68224289 77970616 87716943 97463270 116955924 136448578 146194905 155941232 175433886 194926540 204672867 233911848 272897156 292389810 302136137 311882464 341121445 350867772 389853080 409345734 438584715 467823696 477570023 545794312 584779620 604272274 614018601 682242890 701735544 779706160 818691468 877169430 906408411 935647392 955140046 1023364335 1091588624 1169559240 1208544548 1228037202 1364485780 1403471088 1432710069 1510680685 1559412320 1637382936 1754338860 1812816822 1910280092 2046728670 2114952959 2183177248 2339118480 2387850115 2417089096 2456074404 2719225233 2728971560 2806942176 2865420138 3021361370 3070093005 3274765872 3508677720 3625633644 3820560184 4093457340 4229905918 4298130207 4532042055 4678236960 4775700230 4834178192 4912148808 5438450466 5457943120 5730840276 6042722740 6140186010 6344858877 6549531744 7017355440 7163550345 7251267288 7641120368 8186914680 8459811836 8596260414 9064084110 9551400460 9668356384 9824297616 10574764795 10876900932 10915886240 11461680552 12085445480 12280372020 12689717754 13596126165 14034710880 14327100690 14502534576 14804670713 15282240736 16373829360 16919623672 17192520828 18128168220 19034576631 19102800920 19648595232 21149529590 21490651035 21753801864 22923361104 24170890960 24560744040 25379435508 27192252330 28654201380 29005069152 29609341426 31724294385 32747658720 33839247344 34385041656 36256336440 38069153262 38205601840 42299059180 42981302070 43507603728 44414012139 45846722208 48341781920 49121488080 50758871016 54384504660 57308402760 59218682852 63448588770 67678494688 68770083312 72512672880 74023353565 76138306524 76411203680 84598118360 85962604140 87015207456 88828024278 95172883155 98242976160 101517742032 108769009320 114616805520 118437365704 126897177540 133242036417 137540166624 145025345760 148046707130 152276613048 169196236720 171925208280 177656048556 190345766310 203035484064 217538018640 222070060695 229233611040 236874731408 253794355080 266484072834 296093414260 304553226096 338392473440 343850416560 355312097112 380691532620 435076037280 444140121390 473749462816 507588710160 532968145668 592186828520 609106452192 666210182085 687700833120 710624194224 761383065240 888280242780 1015177420320 1065936291336 1184373657040 1332420364170 1421248388448 1522766130480 1776560485560 2131872582672 2368747314080 2664840728340 3045532260960 3553120971120 4263745165344 5329681456680 7106241942240 10659362913360 21318725826720
• Sum of all divisors σ(n): 87357663364608
• Sum of proper divisors (its aliquot sum) s(n): 66038937537888
• 21318725826720 is an abundant number, because the sum of its proper divisors (66038937537888) is greater than itself. Its abundance is 44720211711168

Bases of 21318725826720

• Binary: 100110110001110100111000101000111100010100000₂
• Hexadecimal: 0x1363A71478A0
• Base-36: 7K1OQX9K0

Squares and roots of 21318725826720

• 21318725826720 squared (21318725826720²) is 454488070874858347465958400
• 21318725826720 cubed (21318725826720³) is 9689106574495992477244107008097128448000
• The square root of 21318725826720 is 4617220.5737564671
• The cube root of 21318725826720 is 27728.1193540367

Scales and comparisons

• 21,318,725,826,720 seconds is equal to 677,869 years, 27 weeks, 6 days, 21 hours, 12 minutes.
• To count from 1 to 21,318,725,826,720 would take you about one million, six hundred ninety-four thousand, six hundred seventy-three 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 21318725826720 cubic inches would be around 2310.7 feet tall.

Recreational maths with 21318725826720

• 21318725826720 backwards is 02762852781312
• The number of decimal digits it has is: 14
• The sum of 21318725826720's digits is 54
• More coming soon!