18640318381171875

Names of 18640318381171875

• Cardinal: 18640318381171875 can be written as Eighteen quadrillion, six hundred forty trillion, three hundred eighteen billion, three hundred eighty-one million, one hundred seventy-one thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 1.8640318381171875 × 10¹⁶

Factors of 18640318381171875

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 1062

Divisors of 18640318381171875

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 9 15 25 27 45 75 81 101 125 135 225 243 303 375 405 505 625 675 909 953 1125 1215 1515 1875 2025 2525 2727 2859 3125 3375 4545 4765 5625 6075 7575 8181 8577 9375 10125 10201 12625 13635 14295 15625 16875 22725 23825 24543 25731 28125 30375 30603 37875 40905 42885 46875 50625 51005 63125 68175 71475 77193 78125 84375 91809 96253 113625 119125 122715 128655 140625 151875 153015 189375 204525 214425 231579 234375 253125 255025 275427 288759 315625 340875 357375 385965 421875 459045 481265 568125 595625 613575 643275 703125 759375 765075 826281 866277 946875 1022625 1030301 1072125 1157895 1265625 1275125 1377135 1443795 1578125 1704375 1786875 1929825 2109375 2295225 2406325 2478843 2598831 2840625 2978125 3067875 3090903 3216375 3796875 3825375 4131405 4331385 4734375 5113125 5151505 5360625 5789475 6328125 6375625 6885675 7218975 7796493 7890625 8521875 8934375 9272709 9649125 9721553 11476125 12031625 12394215 12994155 14203125 14890625 15339375 15454515 16081875 18984375 19126875 20657025 21656925 23389479 23671875 25565625 25757525 26803125 27818127 28947375 29164659 31878125 34428375 36094875 38982465 42609375 44671875 46363545 48245625 48607765 57380625 60158125 61971075 64970775 71015625 74453125 76696875 77272575 80409375 83454381 87493977 95634375 103285125 108284625 116947395 127828125 128787625 134015625 139090635 144736875 145823295 159390625 172141875 180474375 194912325 213046875 223359375 231817725 241228125 243038825 250363143 262481931 286903125 300790625 309855375 324853875 383484375 386362875 402046875 417271905 437469885 478171875 516425625 541423125 584736975 639140625 643938125 670078125 695453175 723684375 729116475 787445793 796953125 860709375 902371875 974561625 981876853 1159088625 1206140625 1215194125 1251815715 1312409655 1434515625 1503953125 1549276875 1624269375 1917421875 1931814375 2010234375 2086359525 2187349425 2362337379 2390859375 2582128125 2707115625 2923684875 2945630559 3219690625 3477265875 3618421875 3645582375 3937228965 4303546875 4511859375 4872808125 4909384265 5795443125 6030703125 6075970625 6259078575 6562048275 7172578125 7519765625 7746384375 8121346875 8836891677 9659071875 10431797625 10936747125 11811686895 12910640625 13535578125 14618424375 14728152795 16098453125 17386329375 18092109375 18227911875 19686144825 21517734375 22559296875 24364040625 24546921325 26510675031 28977215625 30379853125 31295392875 32810241375 38731921875 40606734375 44184458385 48295359375 52158988125 54683735625 59058434475 64553203125 67677890625 73092121875 73640763975 79532025093 80492265625 86931646875 91139559375 98430724125 121820203125 122734606625 132553375155 144886078125 151899265625 156476964375 164051206875 193659609375 203033671875 220922291925 238596075279 241476796875 260794940625 273418678125 295292172375 365460609375 368203819875 397660125465 434658234375 455697796875 492153620625 609101015625 613673033125 662766875775 724430390625 759496328125 782384821875 820256034375 1104611459625 1192980376395 1303974703125 1367093390625 1476460861875 1827303046875 1841019099375 1988300627325 2173291171875 2278488984375 2460768103125 3068365165625 3313834378875 3911924109375 4101280171875 5523057298125 5964901881975 6519873515625 6835466953125 7382304309375 9205095496875 9941503136625 12303840515625 15341825828125 16569171894375 19559620546875 20506400859375 27615286490625 29824509409875 36911521546875 46025477484375 49707515683125 61519202578125 76709129140625 82845859471875 138076432453125 149122547049375 184557607734375 230127387421875 248537578415625 414229297359375 690382162265625 745612735246875 1242687892078125 2071146486796875 3728063676234375 6213439460390625 18640318381171875
• Sum of all divisors σ(n): 35288579839129344
• Sum of proper divisors (its aliquot sum) s(n): 16648261457957469
• 18640318381171875 is a deficient number, because the sum of its proper divisors (16648261457957469) is less than itself. Its deficiency is 1992056923214406

Bases of 18640318381171875

• Binary: 1000010001110010100010101010011100111000010010010100011₂
• Hexadecimal: 0x423945539C24A3
• Base-36: 53JFW1PE36R

Squares and roots of 18640318381171875

• 18640318381171875 squared (18640318381171875²) is 347461469351454070604498291015625
• 18640318381171875 cubed (18640318381171875³) is 6476792413900897401411082443686789989471435546875
• The square root of 18640318381171875 is 136529551.3109593247
• The cube root of 18640318381171875 is 265145.6106425987

Scales and comparisons

• 18,640,318,381,171,875 seconds is equal to 592,704,466 years, 12 weeks, 11 minutes, 15 seconds.
• To count from 1 to 18,640,318,381,171,875 would take you about one billion, seven hundred seventy-eight million, one hundred thirteen thousand, three hundred ninety-eight 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 18640318381171875 cubic inches would be around 22095.5 feet tall.

Recreational maths with 18640318381171875

• 18640318381171875 backwards is 57817118381304681
• The number of decimal digits it has is: 17
• The sum of 18640318381171875's digits is 72
• More coming soon!