18291474505728

Names of 18291474505728

• Cardinal: 18291474505728 can be written as Eighteen trillion, two hundred ninety-one billion, four hundred seventy-four million, five hundred five thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8291474505728 × 10¹³

Factors of 18291474505728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 853

Divisors of 18291474505728

• Number of divisors d(n): 378
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 32 36 38 48 57 64 72 76 96 114 128 144 152 171 192 228 256 288 304 342 361 384 456 512 576 608 684 722 768 829 912 1024 1083 1152 1216 1368 1444 1536 1658 1824 2048 2166 2304 2432 2487 2736 2888 3072 3249 3316 3648 4096 4332 4608 4864 4974 5472 5776 6144 6498 6632 7296 7461 8192 8664 9216 9728 9948 10944 11552 12288 12996 13264 14592 14922 15751 17328 18432 19456 19896 21888 23104 24576 25992 26528 29184 29844 31502 34656 36864 38912 39792 43776 46208 47253 51984 53056 58368 59688 63004 69312 73728 77824 79584 87552 92416 94506 103968 106112 116736 119376 126008 138624 141759 155648 159168 175104 184832 189012 207936 212224 233472 238752 252016 277248 283518 299269 318336 350208 369664 378024 415872 424448 466944 477504 504032 554496 567036 598538 636672 687241 700416 739328 756048 831744 848896 897807 955008 1008064 1108992 1134072 1197076 1273344 1374482 1400832 1478656 1512096 1663488 1697792 1795614 1910016 2016128 2061723 2217984 2268144 2394152 2546688 2693421 2748964 2957312 3024192 3326976 3395584 3591228 3820032 4032256 4123446 4435968 4536288 4788304 5093376 5386842 5497928 6048384 6185169 6653952 6791168 7182456 7640064 8064512 8246892 8871936 9072576 9576608 10186752 10773684 10995856 12096768 12370338 13057579 13307904 14364912 15280128 16129024 16493784 18145152 19153216 20373504 21547368 21991712 24193536 24740676 26115158 26615808 28729824 30560256 32258048 32987568 36290304 38306432 39172737 43094736 43983424 48387072 49481352 52230316 57459648 61120512 64516096 65975136 72580608 76612864 78345474 86189472 87966848 96774144 98962704 104460632 114919296 117518211 129032192 131950272 145161216 153225728 156690948 172378944 175933696 193548288 197925408 208921264 229838592 235036422 248094001 263900544 290322432 306451456 313381896 344757888 351867392 387096576 395850816 417842528 459677184 470072844 496188002 527801088 580644864 612902912 626763792 689515776 703734784 744282003 791701632 835685056 919354368 940145688 992376004 1055602176 1161289728 1225805824 1253527584 1379031552 1407469568 1488564006 1583403264 1671370112 1838708736 1880291376 1984752008 2111204352 2232846009 2451611648 2507055168 2758063104 2814939136 2977128012 3166806528 3342740224 3677417472 3760582752 3969504016 4222408704 4465692018 5014110336 5516126208 5629878272 5954256024 6333613056 6685480448 7354834944 7521165504 7939008032 8444817408 8931384036 10028220672 11032252416 11908512048 12667226112 13370960896 15042331008 15878016064 16889634816 17862768072 20056441344 22064504832 23817024096 25334452224 26741921792 30084662016 31756032128 35725536144 40112882688 47634048192 50668904448 53483843584 60169324032 63512064256 71451072288 80225765376 95268096384 106967687168 120338648064 127024128512 142902144576 160451530752 190536192768 240677296128 254048257024 285804289152 320903061504 381072385536 481354592256 508096514048 571608578304 762144771072 962709184512 1016193028096 1143217156608 1524289542144 2032386056192 2286434313216 3048579084288 4572868626432 6097158168576 9145737252864 18291474505728
• Sum of all divisors σ(n): 55833520606929
• Sum of proper divisors (its aliquot sum) s(n): 37542046101201
• 18291474505728 is an abundant number, because the sum of its proper divisors (37542046101201) is greater than itself. Its abundance is 19250571595473

Bases of 18291474505728

• Binary: 100001010001011010000110101110010000000000000₂
• Hexadecimal: 0x10A2D0D72000
• Base-36: 6HEZJNCW0

Squares and roots of 18291474505728

• 18291474505728 squared (18291474505728²) is 334578039593697381904809984
• 18291474505728 cubed (18291474505728³) is 6119925681404569032621291853232159588352
• The square root of 18291474505728 is 4276853.3416202151
• The cube root of 18291474505728 is 26348.1163173429

Scales and comparisons

• 18,291,474,505,728 seconds is equal to 581,612 years, 16 weeks, 20 hours, 28 minutes, 48 seconds.
• To count from 1 to 18,291,474,505,728 would take you about one million, four hundred fifty-four thousand and thirty 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 18291474505728 cubic inches would be around 2195.7 feet tall.

Recreational maths with 18291474505728

• 18291474505728 backwards is 82750547419281
• The number of decimal digits it has is: 14
• The sum of 18291474505728's digits is 63
• More coming soon!