20400742740840

Names of 20400742740840

• Cardinal: 20400742740840 can be written as Twenty trillion, four hundred billion, seven hundred forty-two million, seven hundred forty thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.040074274084 × 10¹³

Factors of 20400742740840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 53850620

Divisors of 20400742740840

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 20 21 22 24 28 30 33 35 40 41 42 44 55 56 60 66 70 77 82 84 88 105 110 120 123 132 140 154 164 165 168 205 210 220 231 246 264 280 287 308 328 330 385 410 420 440 451 462 492 574 615 616 660 770 820 840 861 902 924 984 1148 1155 1230 1320 1353 1435 1540 1640 1722 1804 1848 2255 2296 2310 2460 2706 2870 3080 3157 3444 3608 4305 4510 4620 4920 5412 5740 6314 6765 6888 8610 9020 9240 9471 10824 11480 12628 13530 15785 17220 18040 18942 25256 27060 31570 34440 37884 47355 54120 63140 75768 94710 126280 189420 378840 53850551 107701102 161551653 215402204 269252755 323103306 376953857 430804408 538505510 592356061 646206612 753907714 807758265 1077011020 1130861571 1184712122 1292413224 1507815428 1615516530 1777068183 1884769285 2154022040 2207872591 2261723142 2369424244 2961780305 3015630856 3231033060 3554136366 3769538570 4146492427 4415745182 4523446284 4738848488 5654307855 5923560610 6462066120 6623617773 7108272732 7539077140 8292984854 8831490364 8885340915 9046892568 11039362955 11308615710 11847121220 12439477281 13247235546 14216545464 15078154280 15455108137 16585969708 17662980728 17770681830 20732462135 22078725910 22617231420 23694242440 24286598501 24878954562 26494471092 30910216274 33118088865 33171939416 35541363660 41464924270 44157451820 45234462840 46365324411 48573197002 49757909124 52988942184 61820432548 62197386405 66236177730 71082727320 72859795503 77275540685 82929848540 88314903640 92730648822 97146394004 99515818248 121432992505 123640865096 124394772810 132472355460 145719591006 154551081370 165859697080 170006189507 185461297644 194292788008 231826622055 242865985010 248789545620 264944710920 291439182012 309102162740 340012379014 364298977515 370922595288 463653244110 485731970020 497579091240 510018568521 582878364024 618204325480 680024758028 728597955030 850030947535 927306488220 971463940040 1020037137042 1360049516056 1457195910060 1700061895070 1854612976440 2040074274084 2550092842605 2914391820120 3400123790140 4080148548168 5100185685210 6800247580280 10200371370420 20400742740840
• Sum of all divisors σ(n): 78165153239040
• Sum of proper divisors (its aliquot sum) s(n): 57764410498200
• 20400742740840 is an abundant number, because the sum of its proper divisors (57764410498200) is greater than itself. Its abundance is 37363667757360

Bases of 20400742740840

• Binary: 100101000110111101011000001100011001101101000₂
• Hexadecimal: 0x128DEB063368
• Base-36: 78BYZHV8O

Squares and roots of 20400742740840

• 20400742740840 squared (20400742740840²) is 416190304377935955403905600
• 20400742740840 cubed (20400742740840³) is 8490591330846167014068657139384624704000
• The square root of 20400742740840 is 4516718.1382990903
• The cube root of 20400742740840 is 27324.2757681823

Scales and comparisons

• 20,400,742,740,840 seconds is equal to 648,680 years, 26 weeks, 5 days, 15 hours, 34 minutes.
• To count from 1 to 20,400,742,740,840 would take you about one million, six hundred twenty-one thousand, seven hundred 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 20400742740840 cubic inches would be around 2277 feet tall.

Recreational maths with 20400742740840

• 20400742740840 backwards is 04804724700402
• 20400742740840 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20400742740840's digits is 42
• More coming soon!