18105842021440

Names of 18105842021440

• Cardinal: 18105842021440 can be written as Eighteen trillion, one hundred five billion, eight hundred forty-two million, twenty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.810584202144 × 10¹³

Factors of 18105842021440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 795824

Divisors of 18105842021440

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 152 160 190 197 304 320 361 380 394 608 722 760 788 985 1216 1444 1520 1576 1805 1970 2888 3040 3152 3610 3743 3940 5776 6080 6304 7220 7486 7880 11552 12608 14440 14972 15760 18715 23104 28880 29944 31520 37430 57760 59888 63040 71117 74860 115520 119776 142234 149720 239552 284468 299440 355585 568936 598880 711170 795601 1137872 1197760 1422340 1591202 2275744 2844680 3182404 3978005 4551488 5689360 6364808 7956010 11378720 12729616 15116419 15912020 22757440 25459232 30232838 31824040 50918464 60465676 63648080 75582095 120931352 127296160 151164190 156733397 241862704 254592320 287211961 302328380 313466794 483725408 574423922 604656760 626933588 783666985 967450816 1148847844 1209313520 1253867176 1436059805 1567333970 2297695688 2418627040 2507734352 2872119610 2977934543 3134667940 4595391376 4837254080 5015468704 5744239220 5955869086 6269335880 9190782752 10030937408 11488478440 11911738172 12538671760 14889672715 18381565504 22976956880 23823476344 25077343520 29779345430 45953913760 47646952688 50154687040 56580756317 59558690860 91907827520 95293905376 113161512634 119117381720 190587810752 226323025268 238234763440 282903781585 452646050536 476469526880 565807563170 905292101072 952939053760 1131615126340 1810584202144 2263230252680 3621168404288 4526460505360 9052921010720 18105842021440
• Sum of all divisors σ(n): 45734191241112
• Sum of proper divisors (its aliquot sum) s(n): 27628349219672
• 18105842021440 is an abundant number, because the sum of its proper divisors (27628349219672) is greater than itself. Its abundance is 9522507198232

Bases of 18105842021440

• Binary: 100000111011110011000010010000011010001000000₂
• Hexadecimal: 0x107798483440
• Base-36: 6F1PIUZB4

Squares and roots of 18105842021440

• 18105842021440 squared (18105842021440²) is 327821515305342505419673600
• 18105842021440 cubed (18105842021440³) is 5935484567347606447159297209369001984000
• The square root of 18105842021440 is 4255096.0061366419
• The cube root of 18105842021440 is 26258.6810998365

Scales and comparisons

• 18,105,842,021,440 seconds is equal to 575,709 years, 40 weeks, 17 hours, 30 minutes, 40 seconds.
• To count from 1 to 18,105,842,021,440 would take you about one million, four hundred thirty-nine thousand, two hundred seventy-four 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 18105842021440 cubic inches would be around 2188.2 feet tall.

Recreational maths with 18105842021440

• 18105842021440 backwards is 04412024850181
• 18105842021440 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18105842021440's digits is 40
• More coming soon!