18168138276701440

Names of 18168138276701440

• Cardinal: 18168138276701440 can be written as Eighteen quadrillion, one hundred sixty-eight trillion, one hundred thirty-eight billion, two hundred seventy-six million, seven hundred one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.816813827670144 × 10¹⁶

Factors of 18168138276701440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3206

Divisors of 18168138276701440

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 109 128 137 160 218 256 274 320 436 545 548 640 685 872 1090 1096 1280 1370 1744 2180 2192 2740 2953 3488 4360 4384 5480 5906 6976 8720 8768 10960 11812 11881 13952 14765 14933 17440 17536 21920 23624 23762 27904 29530 29866 34880 35072 43840 47248 47524 59060 59405 59732 69760 74665 87680 94496 95048 118120 118810 119464 139520 149330 175360 188992 190096 236240 237620 238928 298660 321877 377984 380192 404561 472480 475240 477856 597320 643754 755968 760384 809122 944960 950480 955712 1194640 1287508 1520768 1609385 1618244 1627697 1889920 1900960 1911424 2022805 2389280 2575016 3041536 3218770 3236488 3255394 3779840 3801920 3822848 4045610 4778560 5150032 6437540 6472976 6510788 7603840 8091220 8138485 8720209 9557120 10300064 12875080 12945952 13021576 15207680 16182440 16276970 17440418 19114240 20600128 25750160 25891904 26043152 32364880 32553940 34880836 35084593 41200256 43601045 44097149 51500320 51783808 52086304 64729760 65107880 69761672 70169186 82400512 87202090 88194298 103000640 103567616 104172608 129459520 130215760 139523344 140338372 174404180 175422965 176388596 206001280 208345216 220485745 258919040 260431520 279046688 280676744 348808360 350845930 352777192 412002560 416690432 440971490 517838080 520863040 558093376 561353488 697616720 701691860 705554384 881942980 950502781 1041726080 1116186752 1122706976 1194668633 1395233440 1403383720 1411108768 1763885960 1901005562 2083452160 2232373504 2245413952 2389337266 2790466880 2806767440 2822217536 3527771920 3802011124 4490827904 4752513905 4778674532 4806589241 5580933760 5613534880 5644435072 5973343165 7055543840 7604022248 8981655808 9505027810 9557349064 9613178482 11161867520 11227069760 11288870144 11946686330 14111087680 15208044496 19010055620 19114698128 19226356964 22454139520 23893372660 24032946205 28222175360 30416088992 38020111240 38229396256 38452713928 44908279040 47786745320 48065892410 56444350720 60832177984 76040222480 76458792512 76905427856 95573490640 96131784820 103604803129 121664355968 130218880997 152080444960 152917585024 153810855712 191146981280 192263569640 207209606258 243328711936 260437761994 304160889920 305835170048 307621711424 382293962560 384527139280 414419212516 518024015645 520875523988 608321779840 615243422848 651094404985 764587925120 769054278560 828838425032 1036048031290 1041751047976 1216643559680 1230486845696 1302188809970 1529175850240 1538108557120 1657676850064 2072096062580 2083502095952 2604377619940 3076217114240 3315353700128 4144192125160 4167004191904 5208755239880 6152434228480 6630707400256 8288384250320 8334008383808 10417510479760 13261414800512 14193858028673 16576768500640 16668016767616 20835020959520 26522829601024 28387716057346 33153537001280 33336033535232 41670041919040 56775432114692 66307074002560 70969290143365 83340083838080 113550864229384 132614148005120 141938580286730 166680167676160 227101728458768 283877160573460 454203456917536 567754321146920 908406913835072 1135508642293840 1816813827670144 2271017284587680 3633627655340288 4542034569175360 9084069138350720 18168138276701440
• Sum of all divisors σ(n): 44256863046792564
• Sum of proper divisors (its aliquot sum) s(n): 26088724770091124
• 18168138276701440 is an abundant number, because the sum of its proper divisors (26088724770091124) is greater than itself. Its abundance is 7920586493389684

Bases of 18168138276701440

• Binary: 1000000100010111101001101010100001101101000010100000000₂
• Hexadecimal: 0x408BD354368500
• Base-36: 4YW2FI2IO74

Squares and roots of 18168138276701440

• 18168138276701440 squared (18168138276701440²) is 330081248441343970001126898073600
• 18168138276701440 cubed (18168138276701440³) is 5996961764228578913165965674341713276498345984000
• The square root of 18168138276701440 is 134789236.5016637373
• The cube root of 18168138276701440 is 262887.6245834779

Scales and comparisons

• 18,168,138,276,701,440 seconds is equal to 577,690,599 years, 23 weeks, 5 days, 13 hours, 30 minutes, 40 seconds.
• To count from 1 to 18,168,138,276,701,440 would take you about one billion, seven hundred thirty-three million, seventy-one thousand, seven 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 18168138276701440 cubic inches would be around 21907.3 feet tall.

Recreational maths with 18168138276701440

• 18168138276701440 backwards is 04410767283186181
• The number of decimal digits it has is: 17
• The sum of 18168138276701440's digits is 67
• More coming soon!