21387888420480

Names of 21387888420480

• Cardinal: 21387888420480 can be written as Twenty-one trillion, three hundred eighty-seven billion, eight hundred eighty-eight million, four hundred twenty thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.138788842048 × 10¹³

Factors of 21387888420480

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3106

Divisors of 21387888420480

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 32 36 38 40 45 48 57 60 64 72 76 80 90 95 96 114 120 127 128 144 152 160 171 180 190 192 228 240 254 285 288 304 320 342 360 380 381 384 456 480 508 570 576 608 635 640 677 684 720 760 762 855 912 960 1016 1140 1143 1152 1216 1270 1354 1368 1440 1520 1524 1710 1824 1905 1920 2031 2032 2273 2280 2286 2413 2432 2540 2708 2736 2880 3040 3048 3385 3420 3648 3810 4062 4064 4546 4560 4572 4826 5080 5416 5472 5715 5760 6080 6093 6096 6770 6819 6840 7239 7296 7620 8124 8128 9092 9120 9144 9652 10155 10160 10832 10944 11365 11430 12065 12160 12186 12192 12863 13540 13638 13680 14478 15240 16248 16256 18184 18240 18288 19304 20310 20320 20457 21664 21717 21888 22730 22860 24130 24372 24384 25726 27080 27276 27360 28956 30465 30480 32496 34095 36195 36368 36480 36576 38589 38608 40620 40640 40914 43187 43328 43434 45460 45720 48260 48744 48768 51452 54160 54552 54720 57912 60930 60960 64315 64992 68190 72390 72736 73152 77178 77216 81240 81280 81828 85979 86374 86656 86868 90920 91440 96520 97488 102285 102904 108320 108585 109104 109440 115767 115824 121860 121920 128630 129561 129984 136380 144780 145472 146304 154356 154432 162480 163656 171958 172748 173736 181840 182880 192945 193040 194976 204570 205808 215935 216640 217170 218208 231534 231648 243720 243840 257260 257937 259122 259968 272760 288671 289560 290944 308712 308864 324960 327312 343916 345496 347472 363680 365760 385890 386080 388683 389952 409140 411616 429895 431870 433280 434340 436416 463068 463296 487440 514520 515874 518244 545520 577342 578835 579120 617424 647805 649920 654624 687832 690992 694944 727360 731520 771780 772160 773811 777366 779904 818280 823232 859790 863740 866013 868680 872832 926136 926592 974880 1029040 1031748 1036488 1091040 1154684 1157670 1158240 1234848 1289685 1295610 1299840 1309248 1375664 1381984 1389888 1443355 1454720 1538821 1543560 1544320 1547622 1554732 1633601 1636560 1646464 1719580 1727480 1732026 1737360 1852272 1943415 1949760 2058080 2063496 2072976 2182080 2309368 2315340 2316480 2469696 2579370 2591220 2598039 2618496 2751328 2763968 2779776 2886710 3077642 3087120 3095244 3109464 3267202 3273120 3439160 3454960 3464052 3474720 3704544 3869055 3886830 3899520 4116160 4126992 4145952 4330065 4364160 4616463 4618736 4630680 4632960 4900803 4939392 5158740 5182440 5196078 5484749 5502656 5527936 5773420 6155284 6174240 6190488 6218928 6534404 6546240 6878320 6909920 6928104 6949440 7409088 7694105 7738110 7773660 8168005 8232320 8253984 8291904 8660130 9232926 9237472 9261360 9801606 10317480 10364880 10392156 10969498 11005312 11546840 12310568 12348480 12380976 12437856 12990195 13068808 13092480 13756640 13819840 13849389 13856208 13898880 14702409 14818176 15388210 15476220 15547320 16336010 16454247 16507968 16583808 17320260 18465852 18474944 18522720 19603212 20634960 20729760 20784312 21938996 23082315 23093680 24504015 24621136 24696960 24761952 24875712 25980390 26137616 27423745 27513280 27639680 27698778 27712416 29237599 29404818 30776420 30952440 31094640 32672020 32908494 33015936 34640520 36931704 36949888 37045440 39206424 41269920 41459520 41568624 43877992 46164630 46187360 49008030 49242272 49362741 49523904 49751424 51960780 52275232 54847490 55026560 55397556 55424832 58475198 58809636 61552840 61904880 62189280 65344040 65816988 69246945 69281040 73512045 73863408 74090880 78412848 82271235 82539840 82919040 83137248 87712797 87755984 92329260 92374720 98016060 98484544 98725482 99047808 103921560 104550464 109694980 110795112 110849664 116950396 117619272 123105680 123809760 124378560 130688080 131633976 138493890 138562080 146187995 147024090 147726816 156825696 164542470 165079680 166274496 175425594 175511968 184658520 184749440 195430267 196032120 196969088 197450964 207843120 209100928 219389960 221590224 233900792 235238544 246211360 246813705 247619520 248757120 261376160 263138391 263267952 276987780 277124160 292375990 294048180 295453632 313651392 329084940 332548992 350851188 351023936 369317040 390860534 392064240 394901928 415686240 438563985 438779920 443180448 467801584 470477088 492422720 493627410 495239040 522752320 526276782 526535904 553975560 554248320 584751980 586290801 588096360 590907264 627302784 658169880 701702376 702047872 738634080 781721068 784128480 789803856 831372480 877127970 877559840 886360896 935603168 940954176 977151335 984845440 987254820 1045504640 1052553564 1053071808 1107951120 1169503960 1172581602 1176192720 1315691955 1316339760 1403404752 1477268160 1563442136 1568256960 1579607712 1662744960 1754255940 1755119680 1758872403 1772721792 1871206336 1881908352 1954302670 1974509640 2105107128 2106143616 2215902240 2339007920 2345163204 2352385440 2631383910 2632679520 2806809504 2931454005 2954536320 3126884272 3136513920 3159215424 3508511880 3510239360 3517744806 3713175073 3742412672 3908605340 3949019280 4210214256 4431804480 4678015840 4690326408 4704770880 5262767820 5265359040 5613619008 5862908010 6253768544 6318430848 7017023760 7035489612 7426350146 7817210680 7898038560 8420428512 8794362015 8863608960 9356031680 9380652816 9409541760 10525535640 10530718080 11139525219 11227238016 11725816020 12507537088 14034047520 14070979224 14852700292 15634421360 15796077120 16840857024 17588724030 18565875365 18712063360 18761305632 21051071280 22279050438 23451632040 25015074176 28068095040 28141958448 29705400584 31268842720 31592154240 33418575657 33681714048 35177448060 37131750730 37522611264 42102142560 44558100876 46903264080 55697626095 56136190080 56283916896 59410801168 62537685440 66837151314 70354896120 74263501460 75045222528 84204285120 89116201752 93806528160 111395252190 112567833792 118821602336 125075370880 133674302628 140709792240 148527002920 167092878285 168408570240 178232403504 187613056320 222790504380 225135667584 237643204672 267348605256 281419584480 297054005840 334185756570 356464807008 375226112640 445581008760 475286409344 534697210512 562839168960 594108011680 668371513140 712929614016 891162017520 1069394421024 1125678337920 1188216023360 1336743026280 1425859228032 1782324035040 2138788842048 2376432046720 2673486052560 3564648070080 4277577684096 5346972105120 7129296140160 10693944210240 21387888420480
• Sum of all divisors σ(n): 78504563404800
• Sum of proper divisors (its aliquot sum) s(n): 57116674984320
• 21387888420480 is an abundant number, because the sum of its proper divisors (57116674984320) is greater than itself. Its abundance is 35728786563840

Bases of 21387888420480

• Binary: 100110111001111000001011111011110011010000000₂
• Hexadecimal: 0x1373C17DE680
• Base-36: 7KXGKJOG0

Squares and roots of 21387888420480

• 21387888420480 squared (21387888420480²) is 457441771086902469283430400
• 21387888420480 cubed (21387888420480³) is 9783713558873424186578199935292014592000
• The square root of 21387888420480 is 4624704.1441026257
• The cube root of 21387888420480 is 27758.0723405179

Scales and comparisons

• 21,387,888,420,480 seconds is equal to 680,068 years, 36 weeks, 20 hours, 48 minutes.
• To count from 1 to 21,387,888,420,480 would take you about one million, seven hundred thousand, one hundred seventy-one 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 21387888420480 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21387888420480

• 21387888420480 backwards is 08402488878312
• The number of decimal digits it has is: 14
• The sum of 21387888420480's digits is 63
• More coming soon!