21438757811415

Names of 21438757811415

• Cardinal: 21438757811415 can be written as Twenty-one trillion, four hundred thirty-eight billion, seven hundred fifty-seven million, eight hundred eleven thousand, four hundred fifteen.

Scientific notation

• Scientific notation: 2.1438757811415 × 10¹³

Factors of 21438757811415

• Number of distinct prime factors ω(n): 9
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 651

Divisors of 21438757811415

• Number of divisors d(n): 512
• Complete list of divisors:
  1 3 5 7 15 19 21 35 37 57 73 95 105 111 113 133 137 185 219 257 259 285 339 365 399 411 511 555 565 665 685 703 771 777 791 959 1095 1285 1295 1387 1533 1695 1799 1995 2055 2109 2147 2373 2555 2603 2701 2877 3515 3855 3885 3955 4161 4181 4795 4883 4921 5069 5397 6441 6935 7665 7809 8103 8249 8995 9509 9709 10001 10545 10735 11865 12543 13015 13505 14385 14649 14763 15029 15207 15481 18221 18761 18907 20805 20905 24415 24605 24747 25345 26985 28527 29041 29127 29267 30003 32205 34181 35209 35483 39045 40515 41245 45087 46443 47545 48545 50005 51319 54663 56283 56721 57743 62715 66563 70007 73245 73815 75145 76035 77405 79439 87123 87801 91105 93805 94535 96311 102543 105627 106449 108367 123735 131327 142635 145205 145635 146335 150015 153957 156731 170905 173229 176045 177415 180671 190019 199689 203287 210021 225435 232215 238317 246463 256595 273315 281415 283605 288715 288933 294139 305213 325101 332815 350035 356459 359233 370037 393981 397195 435615 439005 470193 481555 512715 528135 532245 541835 542013 551779 556073 570057 572797 609861 656635 668971 674177 694157 739389 769785 783655 866145 882417 903355 915639 950095 998445 1016435 1050105 1069377 1074517 1077699 1097117 1110111 1130113 1191585 1232315 1264697 1302733 1330133 1444665 1470695 1526065 1625505 1655337 1668219 1718391 1782295 1796165 1850185 1969905 2006913 2022531 2058973 2082471 2119993 2136491 2350965 2495213 2570257 2590259 2710065 2758895 2780365 2850285 2863985 3049305 3223551 3291351 3344855 3370885 3390339 3470785 3696945 3794091 3862453 3908199 3978617 3990399 4009579 4412085 4578195 4682797 4859099 5346885 5372585 5388495 5485585 5550555 5650565 5799047 6176919 6323485 6359979 6409473 6513665 6650665 7030703 7485639 7521619 7710771 7770777 7910791 8276685 8341095 8591955 9119131 10034565 10112655 10294865 10412355 10599965 10682455 10883143 11587359 11935851 12028737 12476065 12851285 12951295 13188983 14048391 14577297 14839951 16117755 16456755 16951695 17397141 17991799 18970455 19312265 19540995 19893085 19951995 20047895 20415823 21092109 21472147 22564857 23413985 23732373 24295495 24751927 27357393 27850319 28995235 30884595 31799895 32047365 32649429 35153515 37428195 37608095 38553855 38853885 39553955 39566949 40279867 40593329 41814181 44519853 45595655 48834883 49214921 53975397 54415715 57936795 59679255 60143685 61247469 64416441 65944915 70241955 72886485 74199755 74255781 75593723 76182001 78439741 83550957 86985705 89958995 92322881 95099509 102079115 105460545 107360735 112824285 118661865 120839601 121779987 123759635 125442543 136786965 139251595 142910761 146504649 147208829 147644763 150305029 163247145 173263489 197834745 201399335 202966645 209070905 222599265 226781169 228546003 235319223 244174415 246074605 269876985 276968643 281959069 285298527 290439041 292699267 306237345 322082205 341844181 371278905 377968615 380910005 392198705 417754785 428732283 441626487 450915087 461614405 475497545 519790467 529156061 549078187 604198005 608899935 627212715 665696563 714553805 732523245 736044145 738223815 751525145 794469439 845877207 866317445 871317123 878097801 1025532543 1030461803 1133905845 1142730015 1176596115 1384843215 1409795345 1426492635 1452195205 1463496335 1490355079 1587468183 1647234561 1709220905 1806890671 1997089689 2033073287 2143661415 2208132435 2254575435 2383408317 2598952335 2645780305 2745390935 2796967751 3091385409 3328482815 3972347195 4229386035 4356585615 4390489005 4471065237 5127662715 5152309015 5420672013 5518341779 5561286073 6099219861 7451775395 7937340915 8236172805 8390903253 9034453355 9985448445 10165366435 10432485553 10746244517 11917041585 12648234697 13984838755 15456927045 16555025337 16683858219 19578774257 22355326185 27103360065 27591708895 27806430365 30496099305 31297456659 32238733551 37944704091 38628392453 41954516265 52162427765 53731222585 58736322771 63241173485 75223711619 82775126685 83419291095 97893871285 115885177359 156487283295 161193667755 189723520455 193141962265 204178645823 225671134857 293681613855 376118558095 579425886795 612535937469 1020893229115 1128355674285 1429250520761 3062679687345 4287751562283 7146252603805 21438757811415
• Sum of all divisors σ(n): 43827851796480
• Sum of proper divisors (its aliquot sum) s(n): 22389093985065
• 21438757811415 is an abundant number, because the sum of its proper divisors (22389093985065) is greater than itself. Its abundance is 950336173650

Bases of 21438757811415

• Binary: 100110111111110011001100010110011010011010111₂
• Hexadecimal: 0x137F998B34D7
• Base-36: 7LKTUV9P3

Squares and roots of 21438757811415

• 21438757811415 squared (21438757811415²) is 459620336496507680704302225
• 21438757811415 cubed (21438757811415³) is 9853689079349694853566903995015714898375
• The square root of 21438757811415 is 4630200.6232359953
• The cube root of 21438757811415 is 27780.0617052569

Scales and comparisons

• 21,438,757,811,415 seconds is equal to 681,686 years, 9 weeks, 3 days, 23 hours, 10 minutes, 15 seconds.
• To count from 1 to 21,438,757,811,415 would take you about one million, seven hundred four thousand, two hundred fifteen 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 21438757811415 cubic inches would be around 2315 feet tall.

Recreational maths with 21438757811415

• 21438757811415 backwards is 51411875783412
• 21438757811415 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21438757811415's digits is 57
• More coming soon!