18538336225285440

Names of 18538336225285440

• Cardinal: 18538336225285440 can be written as Eighteen quadrillion, five hundred thirty-eight trillion, three hundred thirty-six billion, two hundred twenty-five million, two hundred eighty-five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.853833622528544 × 10¹⁶

Factors of 18538336225285440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4483577319

Divisors of 18538336225285440

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 59 60 64 73 80 96 118 120 146 160 177 192 219 236 240 292 295 320 354 365 438 472 480 584 590 708 730 876 885 944 960 1095 1168 1180 1416 1460 1752 1770 1888 2190 2336 2360 2832 2920 3504 3540 3776 4307 4380 4672 4720 5664 5840 7008 7080 8614 8760 9440 11328 11680 12921 14016 14160 17228 17520 18880 21535 23360 25842 28320 34456 35040 43070 51684 56640 64605 68912 70080 86140 103368 129210 137824 172280 206736 258420 275648 344560 413472 516840 689120 826944 1033680 1378240 2067360 4134720 4483577177 8967154354 13450731531 17934308708 22417885885 26901463062 35868617416 44835771770 53802926124 67253657655 71737234832 89671543540 107605852248 134507315310 143474469664 179343087080 215211704496 264531053443 269014630620 286948939328 327301133921 358686174160 430423408992 529062106886 538029261240 654602267842 717372348320 793593160329 860846817984 981903401763 1058124213772 1076058522480 1309204535684 1322655267215 1434744696640 1587186320658 1636505669605 1963806803526 2116248427544 2152117044960 2618409071368 2645310534430 3174372641316 3273011339210 3927613607052 3967965801645 4232496855088 4304234089920 4909517008815 5236818142736 5290621068860 6348745282632 6546022678420 7855227214104 7935931603290 8464993710176 9819034017630 10473636285472 10581242137720 12697490565264 13092045356840 15710454428208 15871863206580 16929987420352 19310766901339 19638068035260 20947272570944 21162484275440 25394981130528 26184090713680 31420908856416 31743726413160 38621533802678 39276136070520 42324968550880 50789962261056 52368181427360 57932300704017 62841817712832 63487452826320 77243067605356 78552272141040 84649937101760 96553834506695 104736362854720 115864601408034 126974905652640 154486135210712 157104544282080 193107669013390 231729202816068 253949811305280 289661503520085 308972270421424 314209088564160 386215338026780 463458405632136 579323007040170 617944540842848 772430676053560 926916811264272 1158646014080340 1235889081685696 1544861352107120 1853833622528544 2317292028160680 3089722704214240 3707667245057088 4634584056321360 6179445408428480 9269168112642720 18538336225285440
• Sum of all divisors σ(n): 60676787979135360
• Sum of proper divisors (its aliquot sum) s(n): 42138451753849920
• 18538336225285440 is an abundant number, because the sum of its proper divisors (42138451753849920) is greater than itself. Its abundance is 23600115528564480

Bases of 18538336225285440

• Binary: 1000001110111001000010011000001011011110101010101000000₂
• Hexadecimal: 0x41DC84C16F5540
• Base-36: 52JAI3AVLMO

Squares and roots of 18538336225285440

• 18538336225285440 squared (18538336225285440²) is 343669910001730416009209475993600
• 18538336225285440 cubed (18538336225285440³) is 6371068342125665922898741892371091500987613184000
• The square root of 18538336225285440 is 136155558.9217180659
• The cube root of 18538336225285440 is 264661.1842947425

Scales and comparisons

• 18,538,336,225,285,440 seconds is equal to 589,461,749 years, 6 weeks, 3 days, 13 hours, 4 minutes.
• To count from 1 to 18,538,336,225,285,440 would take you about one billion, seven hundred sixty-eight million, three hundred eighty-five thousand, two hundred forty-seven 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 18538336225285440 cubic inches would be around 22055.1 feet tall.

Recreational maths with 18538336225285440

• 18538336225285440 backwards is 04458252263383581
• The number of decimal digits it has is: 17
• The sum of 18538336225285440's digits is 69
• More coming soon!