18121101808128

Names of 18121101808128

• Cardinal: 18121101808128 can be written as Eighteen trillion, one hundred twenty-one billion, one hundred one million, eight hundred eight thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8121101808128 × 10¹³

Factors of 18121101808128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 212

Divisors of 18121101808128

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 17 22 24 32 33 34 44 48 51 64 66 68 88 96 102 121 128 132 136 176 179 187 192 204 242 256 264 272 352 358 363 374 384 408 484 512 528 537 544 561 704 716 726 748 768 816 968 1056 1074 1088 1122 1408 1432 1452 1496 1536 1632 1936 1969 2057 2112 2148 2176 2244 2816 2864 2904 2992 3043 3264 3872 3938 4114 4224 4296 4352 4488 5632 5728 5808 5907 5984 6086 6171 6528 7744 7876 8228 8448 8592 8704 8976 9129 11456 11616 11814 11968 12172 12342 13056 15488 15752 16456 16896 17184 17952 18258 21659 22912 23232 23628 23936 24344 24684 26112 30976 31504 32041 32912 33473 34368 35904 36516 43318 45824 46464 47256 47872 48688 49368 61952 63008 64082 64977 65824 66946 68736 71808 73032 86636 91648 92928 94512 95744 96123 97376 98736 100419 126016 128164 129954 131648 133892 137472 143616 146064 173272 185856 189024 192246 194752 197472 200838 252032 256328 259908 263296 267784 274944 287232 292128 346544 352451 368203 378048 384492 389504 394944 401676 504064 512656 519816 526592 535568 544697 584256 693088 704902 736406 756096 768984 779008 789888 803352 1008128 1025312 1039632 1053184 1057353 1071136 1089394 1104609 1168512 1386176 1409804 1472812 1512192 1537968 1558016 1579776 1606704 1634091 2050624 2079264 2114706 2142272 2178788 2209218 2337024 2772352 2819608 2945624 3024384 3075936 3159552 3213408 3268182 3876961 4101248 4158528 4229412 4284544 4357576 4418436 4674048 5544704 5639216 5735339 5891248 5991667 6151872 6426816 6536364 7753922 8202496 8317056 8458824 8569088 8715152 8836872 11089408 11278432 11470678 11630883 11782496 11983334 12303744 12853632 13072728 15507844 16404992 16634112 16917648 17138176 17206017 17430304 17673744 17975001 22556864 22941356 23261766 23564992 23966668 24607488 25707264 26145456 31015688 33268224 33835296 34412034 34860608 35347488 35950002 45113728 45882712 46523532 47129984 47933336 49214976 51414528 52290912 62031376 63088729 65908337 67670592 68824068 69721216 70694976 71900004 90227456 91765424 93047064 94259968 95866672 97500763 104581824 124062752 126177458 131816674 135341184 137648136 139442432 141389952 143800008 180454912 183530848 186094128 188519936 189266187 191733344 195001526 197725011 209163648 248125504 252354916 263633348 270682368 275296272 278884864 282779904 287600016 292502289 367061696 372188256 378532374 383466688 390003052 395450022 418327296 496251008 504709832 527266696 541364736 550592544 565559808 575200032 585004578 693976019 734123392 744376512 757064748 766933376 780006104 790900044 836654592 992502016 1009419664 1054533392 1072508393 1101185088 1150400064 1170009156 1387952038 1468246784 1488753024 1514129496 1533866752 1560012208 1581800088 1985004032 2018839328 2081928057 2109066784 2145016786 2202370176 2300800128 2340018312 2775904076 2936493568 2977506048 3028258992 3067733504 3120024416 3163600176 3217525179 4037678656 4163856114 4218133568 4290033572 4404740352 4601600256 4680036624 5551808152 5955012096 6056517984 6240048832 6327200352 6435050358 8075357312 8327712228 8436267136 8580067144 8809480704 9203200512 9360073248 11103616304 11797592323 12113035968 12480097664 12654400704 12870100716 16150714624 16655424456 16872534272 17160134288 18720146496 22207232608 23595184646 24226071936 24960195328 25308801408 25740201432 32301429248 33310848912 33745068544 34320268576 35392776969 37440292992 44414465216 47190369292 48452143872 49920390656 50617602816 51480402864 66621697824 68640537152 70785553938 74880585984 88828930432 94380738584 96904287744 101235205632 102960805728 133243395648 137281074304 141571107876 149761171968 177657860864 188761477168 205921611456 266486791296 274562148608 283142215752 355315721728 377522954336 411843222912 532973582592 549124297216 566284431504 755045908672 823686445824 1065947165184 1132568863008 1510091817344 1647372891648 2265137726016 3020183634688 4530275452032 6040367269376 9060550904064 18121101808128
• Sum of all divisors σ(n): 56500448114880
• Sum of proper divisors (its aliquot sum) s(n): 38379346306752
• 18121101808128 is an abundant number, because the sum of its proper divisors (38379346306752) is greater than itself. Its abundance is 20258244498624

Bases of 18121101808128

• Binary: 100000111101100100101110101100001001000000000₂
• Hexadecimal: 0x107B25D61200
• Base-36: 6F8PW562O

Squares and roots of 18121101808128

• 18121101808128 squared (18121101808128²) is 328374330740539870926864384
• 18121101808128 cubed (18121101808128³) is 5950504678525218948283677928151844913152
• The square root of 18121101808128 is 4256888.7474454861
• The cube root of 18121101808128 is 26266.0560556219

Scales and comparisons

• 18,121,101,808,128 seconds is equal to 576,194 years, 51 weeks, 1 day, 15 hours, 8 minutes, 48 seconds.
• To count from 1 to 18,121,101,808,128 would take you about one million, four hundred forty thousand, four hundred eighty-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 18121101808128 cubic inches would be around 2188.8 feet tall.

Recreational maths with 18121101808128

• 18121101808128 backwards is 82180810112181
• The number of decimal digits it has is: 14
• The sum of 18121101808128's digits is 42
• More coming soon!