18081801873408

Names of 18081801873408

• Cardinal: 18081801873408 can be written as Eighteen trillion, eighty-one billion, eight hundred one million, eight hundred seventy-three thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.8081801873408 × 10¹³

Factors of 18081801873408

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 6404

Divisors of 18081801873408

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 41 42 48 52 56 64 78 82 84 91 96 104 112 123 127 128 156 164 168 182 192 208 224 246 254 256 273 287 312 328 336 364 381 384 416 448 492 508 512 533 546 574 624 656 672 728 762 768 832 861 889 896 984 1016 1024 1066 1092 1148 1248 1312 1344 1456 1524 1536 1599 1651 1664 1722 1778 1792 1968 2032 2048 2132 2184 2296 2496 2624 2667 2688 2912 3048 3072 3198 3302 3328 3444 3556 3584 3731 3936 4064 4264 4368 4592 4953 4992 5207 5248 5334 5376 5824 6096 6144 6211 6396 6604 6656 6888 7112 7168 7462 7872 8128 8528 8736 9184 9906 9984 10414 10496 10668 10752 11193 11557 11648 12192 12422 12792 13208 13312 13776 14224 14336 14924 15621 15744 16256 17056 17472 18368 18633 19812 19968 20828 20992 21336 21504 22386 23114 23296 24384 24844 25584 26416 26624 27552 28448 29848 31242 31488 32512 34112 34671 34944 36449 36736 37266 39624 39936 41656 41984 42672 43008 43477 44772 46228 46592 48768 49688 51168 52832 55104 56896 59696 62484 62976 65024 67691 68224 69342 69888 72898 73472 74532 79248 79872 80743 83312 83968 85344 86954 89544 92456 93184 97536 99376 102336 105664 109347 110208 113792 119392 124968 125952 130048 130431 135382 136448 138684 139776 145796 146944 149064 158496 161486 166624 170688 173908 179088 184912 186368 195072 198752 203073 204672 211328 218694 220416 227584 238784 242229 249936 251904 254651 260096 260862 270764 272896 277368 279552 291592 293888 298128 316992 322972 333248 341376 347816 358176 369824 390144 397504 406146 409344 422656 437388 440832 455168 473837 477568 484458 499872 509302 521724 541528 545792 554736 559104 565201 583184 587776 596256 633984 645944 666496 682752 695632 716352 739648 763953 780288 788797 795008 812292 818688 845312 874776 881664 910336 947674 955136 968916 999744 1018604 1043448 1083056 1091584 1109472 1130402 1166368 1192512 1267968 1291888 1332992 1365504 1391264 1421511 1432704 1479296 1527906 1577594 1590016 1624584 1637376 1690624 1695603 1749552 1763328 1782557 1820672 1895348 1910272 1937832 1999488 2037208 2086896 2166112 2218944 2260804 2332736 2366391 2385024 2535936 2583776 2665984 2731008 2782528 2843022 2865408 2958592 3055812 3155188 3180032 3249168 3274752 3310463 3381248 3391206 3499104 3565114 3790696 3820544 3875664 3998976 4074416 4173792 4332224 4437888 4521608 4665472 4732782 4770048 5071872 5167552 5331968 5347671 5462016 5521579 5565056 5686044 5730816 5917184 6111624 6310376 6360064 6498336 6620926 6782412 6998208 7130228 7581392 7641088 7751328 7997952 8148832 8347584 8664448 8875776 9043216 9330944 9465564 9540096 9931389 10143744 10254361 10335104 10663936 10695342 11043158 11130112 11372088 11461632 11834368 12223248 12620752 12720128 12996672 13241852 13564824 13996416 14260456 15162784 15502656 15995904 16297664 16564737 16695168 17328896 17751552 18086432 18661888 18931128 19080192 19862778 20508722 20670208 21390684 22086316 22260224 22744176 22923264 23173241 23668736 24446496 25241504 25993344 26483704 27129648 27992832 28520912 30325568 30763083 31005312 31991808 32340677 32595328 33129474 33390336 34657792 35503104 36172864 37323776 37862256 38160384 39725556 41017444 41340416 42781368 44172632 44520448 45488352 46346482 48892992 50483008 51986688 52967408 54259296 55985664 57041824 60651136 61526166 62010624 64681354 65190656 66258948 66780672 69315584 69519723 71006208 71780527 72345728 74647552 75724512 79451112 82034888 82680832 85562736 88345264 89040896 90976704 92692964 97022031 97785984 100966016 103973376 105934816 108518592 111971328 114083648 121302272 123052332 124021248 129362708 130381312 132517896 133561344 138631168 139039446 143561054 144691456 151449024 158902224 164069776 165361664 171125472 176690528 181953408 185385928 194044062 195571968 201932032 207946752 211869632 215341581 217037184 223942656 226384739 228167296 242604544 246104664 248042496 258725416 260762624 265035792 267122688 278078892 287122108 289382912 302898048 317804448 328139552 342250944 353381056 363906816 370771856 388088124 391143936 403864064 415893504 420428801 423739264 430683162 434074368 452769478 456334592 485209088 492209328 496084992 517450832 521525248 530071584 556157784 574244216 578765824 605796096 635608896 656279104 679154217 684501888 706762112 727813632 741543712 776176248 782287872 807728128 840857602 847478528 861366324 868148736 905538956 912669184 970418176 984418656 1034901664 1060143168 1112315568 1148488432 1157531648 1211592192 1261286403 1271217792 1312558208 1358308434 1369003776 1413524224 1455627264 1483087424 1552352496 1564575744 1615456256 1681715204 1694957056 1722732648 1736297472 1811077912 1825338368 1968837312 2069803328 2120286336 2224631136 2296976864 2423184384 2522572806 2542435584 2625116416 2716616868 2738007552 2827048448 2911254528 2943001607 2966174848 3104704992 3363430408 3389914112 3445465296 3472594944 3622155824 3650676736 3937674624 4139606656 4240572672 4449262272 4593953728 4846368768 5045145612 5084871168 5250232832 5433233736 5476015104 5654096896 5886003214 5932349696 6209409984 6726860816 6779828224 6890930592 7244311648 7875349248 8279213312 8481145344 8829004821 8898524544 9187907456 10090291224 10169742336 10500465664 10866467472 10952030208 11308193792 11772006428 11864699392 12418819968 13453721632 13781861184 14488623296 15750698496 16558426624 16962290688 17658009642 17797049088 18375814912 20180582448 20339484672 21000931328 21732934944 23544012856 23729398784 24837639936 26907443264 27563722368 28977246592 31501396992 33116853248 33924581376 35316019284 35594098176 36751629824 40361164896 43465869888 47088025712 47458797568 49675279872 53814886528 55127444736 57954493184 63002793984 66233706496 70632038568 71188196352 73503259648 80722329792 86931739776 94176051424 99350559744 107629773056 110254889472 115908986368 141264077136 142376392704 147006519296 161444659584 173863479552 188352102848 198701119488 215259546112 220509778944 231817972736 282528154272 322889319168 347726959104 376704205696 430519092224 441019557888 463635945472 565056308544 645778638336 695453918208 753408411392 861038184448 1130112617088 1291557276672 1390907836416 1506816822784 2260225234176 2583114553344 3013633645568 4520450468352 6027267291136 9040900936704 18081801873408
• Sum of all divisors σ(n): 61266437406720
• Sum of proper divisors (its aliquot sum) s(n): 43184635533312
• 18081801873408 is an abundant number, because the sum of its proper divisors (43184635533312) is greater than itself. Its abundance is 25102833659904

Bases of 18081801873408

• Binary: 100000111000111111111011000001010100000000000₂
• Hexadecimal: 0x1071FF60A800
• Base-36: 6EQNXZ6DC

Squares and roots of 18081801873408

• 18081801873408 squared (18081801873408²) is 326951558989181058457534464
• 18081801873408 cubed (18081801873408³) is 5911873311844240285621155033967925133312
• The square root of 18081801873408 is 4252270.2023046467
• The cube root of 18081801873408 is 26247.0542416113

Scales and comparisons

• 18,081,801,873,408 seconds is equal to 574,945 years, 19 weeks, 1 day, 6 hours, 36 minutes, 48 seconds.
• To count from 1 to 18,081,801,873,408 would take you about one million, four hundred thirty-seven thousand, three hundred sixty-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 18081801873408 cubic inches would be around 2187.3 feet tall.

Recreational maths with 18081801873408

• 18081801873408 backwards is 80437810818081
• The number of decimal digits it has is: 14
• The sum of 18081801873408's digits is 57
• More coming soon!