18406968274665855

Names of 18406968274665855

• Cardinal: 18406968274665855 can be written as Eighteen quadrillion, four hundred six trillion, nine hundred sixty-eight billion, two hundred seventy-four million, six hundred sixty-five thousand, eight hundred fifty-five.

Scientific notation

• Scientific notation: 1.8406968274665855 × 10¹⁶

Factors of 18406968274665855

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1359

Divisors of 18406968274665855

• Number of divisors d(n): 336
• Complete list of divisors:
  1 3 5 9 15 27 29 45 81 87 135 145 151 243 261 405 435 453 729 755 783 841 1171 1215 1305 1359 2265 2349 2523 3513 3645 3915 4077 4205 4379 5855 6795 7047 7569 10539 11745 12231 12615 13137 17565 20385 21141 21895 22707 24389 31617 33959 35235 36693 37845 39411 52695 61155 65685 68121 73167 94851 101877 105705 110079 113535 118233 121945 126991 158085 169795 176821 183465 197055 204363 219501 284553 305631 340605 354699 365835 380973 474255 509385 530463 550395 591165 613089 634955 658503 853659 884105 916893 984811 1021815 1064097 1097505 1142919 1371241 1422765 1528155 1591389 1773495 1904865 1975509 2652315 2750679 2954433 3065445 3192291 3292515 3428757 3682739 4113723 4268295 4584465 4774167 4924055 5127809 5320485 5714595 5926527 6856205 7956945 8252037 8863299 9877545 10286271 11048217 12341169 13753395 14322501 14772165 15383427 15961455 17143785 17779581 18413695 20568615 23870835 24756111 25639045 26589897 28559519 29632635 30858813 33144651 37023507 39765989 41260185 42967503 44316495 46150281 51431355 55241085 61705845 71612505 76917135 79769691 85678557 88897905 92576439 99433953 111070521 119297967 123780555 128902509 132949485 138450843 142797595 148706461 154294065 165723255 185117535 198829945 207057391 214837515 230751405 239309073 257035671 298301859 333211563 357893901 398848455 415352529 428392785 446119383 462882195 497169765 555352605 596489835 621172173 644512545 692254215 717927219 743532305 771107013 894905577 999634689 1035286955 1073681703 1153213681 1196545365 1246057587 1285178355 1338358149 1491509295 1666057815 1789469505 1863516519 2076762645 2230596915 2313321039 2684716731 3105860865 3221045109 3459641043 3589636095 3738172761 3855535065 4015074447 4312487369 4474527885 4998173445 5368408515 5590549557 5766068405 6004664339 6230287935 6691790745 6939963117 9317582595 9663135327 10378923129 11566605195 12045223341 12937462107 13423583655 16105225545 16771648671 17298205215 18013993017 18690863805 20075372235 20819889351 21562436845 27952747785 28989405981 30023321695 31136769387 33443196749 34699815585 36135670023 38812386321 48315676635 50314946013 51894615645 54041979051 60226116705 64687310535 83858243355 90069965085 93410308161 100329590247 104099446755 108407010069 116437158963 144947029905 150944838039 155683846935 162125937153 167215983745 174135265831 180678350115 194061931605 251574730065 270209895255 280230924483 300988770741 349311476889 467051540805 486377811459 501647951235 522405797493 542035050345 582185794815 754724190195 810629685765 840692773449 870676329155 902966312223 1047934430667 1401154622415 1459133434377 1504943853705 1567217392479 1746557384445 2431889057295 2612028987465 2708898936669 3143803292001 4203463867245 4377400303131 4514831561115 4701652177437 5049922709099 5239672153335 7295667171885 7836086962395 8126696810007 13544494683345 14104956532311 15149768127297 15719016460005 21887001515655 23508260887185 24380090430021 25249613545495 40633484050035 42314869596933 45449304381891 70524782661555 75748840636485 121900452150105 126944608790799 136347913145673 211574347984665 227246521909455 409043739437019 634723043953995 681739565728365 1227131218311057 2045218697185095 3681393654933171 6135656091555285 18406968274665855
• Sum of all divisors σ(n): 34556772166822080
• Sum of proper divisors (its aliquot sum) s(n): 16149803892156225
• 18406968274665855 is a deficient number, because the sum of its proper divisors (16149803892156225) is less than itself. Its deficiency is 2257164382509630

Bases of 18406968274665855

• Binary: 1000001011001010000101001000101011001110100000101111111₂
• Hexadecimal: 0x41650A4567417F
• Base-36: 518Q4HKWCXR

Squares and roots of 18406968274665855

• 18406968274665855 squared (18406968274665855²) is 338816481064555282796611902881025
• 18406968274665855 cubed (18406968274665855³) is 6236584217889193484355572748848334390193694901375
• The square root of 18406968274665855 is 135672282.6323263973
• The cube root of 18406968274665855 is 264034.5468385809

Scales and comparisons

• 18,406,968,274,665,855 seconds is equal to 585,284,654 years, 33 weeks, 3 days, 2 hours, 44 minutes, 15 seconds.
• To count from 1 to 18,406,968,274,665,855 would take you about one billion, seven hundred fifty-five million, eight hundred fifty-three thousand, nine hundred sixty-three 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 18406968274665855 cubic inches would be around 22002.9 feet tall.

Recreational maths with 18406968274665855

• 18406968274665855 backwards is 55856647286960481
• The number of decimal digits it has is: 17
• The sum of 18406968274665855's digits is 90
• More coming soon!