21009018613500

Names of 21009018613500

• Cardinal: 21009018613500 can be written as Twenty-one trillion, nine billion, eighteen million, six hundred thirteen thousand, five hundred.

Scientific notation

• Scientific notation: 2.10090186135 × 10¹³

Factors of 21009018613500

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 496

Divisors of 21009018613500

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 90 100 103 108 125 135 150 180 206 225 250 270 300 309 375 383 412 450 500 515 540 618 675 750 766 900 927 1030 1125 1149 1236 1350 1500 1532 1545 1854 1915 2060 2250 2298 2575 2700 2781 3090 3375 3447 3708 3830 4500 4596 4635 5150 5562 5745 6180 6750 6894 7660 7725 9270 9575 10300 10341 10609 11124 11490 12875 13500 13788 13905 15450 17235 18540 19150 20682 21218 22980 23175 25750 27810 28725 30900 31827 34470 38300 38625 39449 41364 42436 46350 47875 51500 51705 53045 55620 57450 63654 68940 69525 77250 78898 86175 92700 95481 95750 103410 106090 114900 115875 118347 127308 139050 143625 146689 154500 157796 159135 172350 190962 191500 197245 206820 212180 231750 236694 258525 265225 278100 286443 287250 293378 318270 344700 347625 355041 381924 394490 430875 440067 463500 473388 477405 517050 530450 572886 574500 586756 591735 636540 695250 710082 733445 788980 795675 861750 880134 954810 986225 1034100 1060900 1065123 1145772 1183470 1292625 1320201 1326125 1390500 1420164 1432215 1466890 1591350 1723500 1760268 1775205 1909620 1972450 2130246 2200335 2366940 2387025 2585250 2640402 2652250 2864430 2933780 2958675 3182700 3550410 3667225 3944900 3960603 3978375 4063247 4260492 4400670 4774050 4931125 5170500 5280804 5304500 5325615 5728860 5917350 6601005 7100820 7161075 7334450 7921206 7956750 8126494 8801340 8876025 9548100 9862250 10651230 11001675 11834700 11935125 12189741 13202010 14322150 14668900 14793375 15108967 15842412 15913500 16252988 17752050 18336125 19724500 19803015 20316235 21302460 22003350 23870250 24379482 26404020 26628075 28644300 29586750 30217934 33005025 35504100 35805375 36569223 36672250 39606030 40632470 44006700 44380125 45326901 47740500 48758964 53256150 55008375 59173500 60435868 60948705 66010050 71610750 73138446 73344500 75544835 79212060 81264940 88760250 90653802 99015075 101581175 106512300 109707669 110016750 121897410 132020100 133140375 135980703 143221500 146276892 151089670 165025125 177520500 181307604 182846115 198030150 203162350 219415338 220033500 226634505 243794820 266280750 271961406 302179340 304743525 330050250 365692230 377724175 396060300 406324700 407942109 438830676 453269010 495075375 507905875 532561500 543922812 548538345 609487050 660100500 679903515 731384460 755448350 815884218 906538020 914230575 990150750 1015811750 1097076690 1133172525 1218974100 1359807030 1510896700 1523717625 1556223601 1631768436 1828461150 1888620875 1980301500 2031623500 2039710545 2194153380 2266345050 2719614060 2742691725 3047435250 3112447202 3399517575 3656922300 3777241750 4079421090 4532690100 4571152875 4668670803 5485383450 5665862625 6094870500 6224894404 6799035150 7554483500 7781118005 8158842180 9142305750 9337341606 10198552725 10970766900 11331725250 13598070300 13713458625 14006012409 15562236010 16997587875 18284611500 18674683212 20397105450 22663450500 23343354015 27426917250 28012024818 31124472020 33995175750 38905590025 40794210900 42018037227 46686708030 50992763625 54853834500 56024049636 67990351500 70030062045 77811180050 84036074454 93373416060 101985527250 116716770075 140060124090 155622360100 168072148908 194527950125 203971054500 210090186135 233433540150 280120248180 350150310225 389055900250 420180372270 466867080300 583583850375 700300620450 778111800500 840360744540 1050450930675 1167167700750 1400601240900 1750751551125 2100901861350 2334335401500 3501503102250 4201803722700 5252254653375 7003006204500 10504509306750 21009018613500
• Sum of all divisors σ(n): 68821904380320
• Sum of proper divisors (its aliquot sum) s(n): 47812885766820
• 21009018613500 is an abundant number, because the sum of its proper divisors (47812885766820) is greater than itself. Its abundance is 26803867153320

Bases of 21009018613500

• Binary: 100110001101110001011000101110110111011111100₂
• Hexadecimal: 0x131B8B176EFC
• Base-36: 7G3ER8UF0

Squares and roots of 21009018613500

• 21009018613500 squared (21009018613500²) is 441378863102389462382250000
• 21009018613500 cubed (21009018613500³) is 9272936750523568571514948302010375000000
• The square root of 21009018613500 is 4583559.6007360917
• The cube root of 21009018613500 is 27593.1906701281

Scales and comparisons

• 21,009,018,613,500 seconds is equal to 668,021 years, 41 weeks, 6 days, 15 hours, 45 minutes.
• To count from 1 to 21,009,018,613,500 would take you about one million, six hundred seventy thousand and 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 21009018613500 cubic inches would be around 2299.4 feet tall.

Recreational maths with 21009018613500

• 21009018613500 backwards is 00531681090012
• 21009018613500 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21009018613500's digits is 36
• More coming soon!