81816983087616

Names of 81816983087616

• Cardinal: 81816983087616 can be written as Eighty-one trillion, eight hundred sixteen billion, nine hundred eighty-three million, eighty-seven thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 8.1816983087616 × 10¹³

Factors of 81816983087616

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 3234

Divisors of 81816983087616

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 224 252 256 288 336 384 448 504 512 576 672 768 896 1008 1091 1152 1344 1536 1792 2016 2131 2182 2304 2688 3273 3584 4032 4262 4364 4608 5376 6393 6546 7637 8064 8524 8728 9819 10752 12786 13092 14917 15274 16128 17048 17456 19179 19638 22911 25572 26184 29834 30548 32256 34096 34912 38358 39276 44751 45822 51144 52368 59668 61096 68192 68733 69824 76716 78552 89502 91644 102288 104736 119336 122192 134253 136384 137466 139648 153432 157104 179004 183288 204576 209472 238672 244384 268506 272768 274932 279296 306864 314208 358008 366576 409152 418944 477344 488768 537012 545536 549864 558592 613728 628416 716016 733152 818304 837888 954688 977536 1074024 1091072 1099728 1190281 1227456 1256832 1432032 1466304 1636608 1675776 1909376 1955072 2148048 2199456 2324921 2380562 2454912 2513664 2864064 2932608 3273216 3570843 3818752 3910144 4296096 4398912 4649842 4761124 4909824 5027328 5728128 5865216 6974763 7141686 7637504 8331967 8592192 8797824 9299684 9522248 9819648 10712529 11456256 11730432 13949526 14283372 16274447 16663934 17184384 17595648 18599368 19044496 20924289 21425058 22912512 24995901 27899052 28566744 32548894 33327868 34368768 35191296 37198736 38088992 41848578 42850116 48823341 49991802 55798104 57133488 65097788 66655736 68737536 74397472 74987703 76177984 83697156 85700232 97646682 99983604 111596208 114266976 130195576 133311472 146470023 148794944 149975406 152355968 167394312 171400464 195293364 199967208 223192416 228533952 260391152 266622944 292940046 297589888 299950812 304711936 334788624 342800928 390586728 399934416 446384832 457067904 520782304 533245888 585880092 595179776 599901624 609423872 669577248 685601856 781173456 799868832 892769664 914135808 1041564608 1066491776 1171760184 1190359552 1199803248 1339154496 1371203712 1562346912 1599737664 1785539328 1828271616 2083129216 2132983552 2343520368 2399606496 2536488811 2678308992 2742407424 3124693824 3199475328 3571078656 4166258432 4265967104 4687040736 4799212992 5072977622 5356617984 5484814848 6249387648 6398950656 7609466433 8332516864 9374081472 9598425984 10145955244 10713235968 12498775296 12797901312 15218932866 17755421677 18748162944 19196851968 20291910488 22828399299 24997550592 30437865732 35510843354 37496325888 38393703936 40583820976 45656798598 53266265031 60875731464 71021686708 74992651776 81167641952 91313597196 106532530062 121751462928 142043373416 159798795093 162335283904 182627194392 213065060124 243502925856 284086746832 319597590186 324670567808 365254388784 426130120248 487005851712 568173493664 639195180372 649341135616 730508777568 852260240496 974011703424 1136346987328 1278390360744 1298682271232 1461017555136 1704520480992 1948023406848 2272693974656 2556780721488 2922035110272 3409040961984 3896046813696 4545387949312 5113561442976 5844070220544 6818081923968 9090775898624 10227122885952 11688140441088 13636163847936 20454245771904 27272327695872 40908491543808 81816983087616
• Sum of all divisors σ(n): 270236449852512
• Sum of proper divisors (its aliquot sum) s(n): 188419466764896
• 81816983087616 is an abundant number, because the sum of its proper divisors (188419466764896) is greater than itself. Its abundance is 106602483677280

Bases of 81816983087616

• Binary: 10010100110100110000000001101101010101000000000₂
• Hexadecimal: 0x4A698036AA00
• Base-36: T027BA0W0

Squares and roots of 81816983087616

• 81816983087616 squared (81816983087616²) is 6694018721559242572732563456
• 81816983087616 cubed (81816983087616³) is 547684416529997427374271005078509527760896
• The square root of 81816983087616 is 9045274.0747650095
• The cube root of 81816983087616 is 43412.4690908727

Scales and comparisons

• 81,816,983,087,616 seconds is equal to 2,601,526 years, 51 weeks, 1 day, 18 hours, 33 minutes, 36 seconds.
• To count from 1 to 81,816,983,087,616 would take you about six million, five hundred three thousand, eight hundred seventeen 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 81816983087616 cubic inches would be around 3617.7 feet tall.

Recreational maths with 81816983087616

• 81816983087616 backwards is 61678038961818
• 81816983087616 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81816983087616's digits is 72
• More coming soon!