18018639075870

Names of 18018639075870

• Cardinal: 18018639075870 can be written as Eighteen trillion, eighteen billion, six hundred thirty-nine million, seventy-five thousand, eight hundred seventy.

Scientific notation

• Scientific notation: 1.801863907587 × 10¹³

Factors of 18018639075870

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 312142

Divisors of 18018639075870

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 81 89 90 135 162 178 243 267 270 405 445 486 534 729 801 810 890 1215 1335 1458 1602 2403 2430 2670 3645 4005 4806 7209 7290 7921 8010 12015 14418 15842 21627 23763 24030 36045 39605 43254 47526 64881 71289 72090 79210 108135 118815 129762 142578 213867 216270 237630 312043 324405 356445 427734 624086 641601 648810 712890 936129 1069335 1283202 1560215 1872258 1924803 2138670 2808387 3120430 3208005 3849606 4680645 5616774 5774409 6416010 8425161 9361290 9624015 11548818 14041935 16850322 19248030 25275483 27771827 28083870 28872045 42125805 50550966 55543654 57744090 75826449 83315481 84251610 126377415 138859135 151652898 166630962 227479347 249946443 252754830 277718270 379132245 416577405 454958694 499892886 749839329 758264490 833154810 1137396735 1249732215 1499678658 2249517987 2274793470 2471692603 2499464430 3749196645 4499035974 4943385206 6748553961 7415077809 7498393290 11247589935 12358463015 13497107922 14830155618 20245661883 22245233427 22495179870 24716926030 33742769805 37075389045 40491323766 44490466854 66735700281 67485539610 74150778090 101228309415 111226167135 133471400562 200207100843 202456618830 222452334270 333678501405 400414201686 600621302529 667357002810 1001035504215 1201242605058 1801863907587 2002071008430 3003106512645 3603727815174 6006213025290 9009319537935 18018639075870
• Sum of all divisors σ(n): 49180759938216
• Sum of proper divisors (its aliquot sum) s(n): 31162120862346
• 18018639075870 is an abundant number, because the sum of its proper divisors (31162120862346) is greater than itself. Its abundance is 13143481786476

Bases of 18018639075870

• Binary: 100000110001101001010100101001101101000011110₂
• Hexadecimal: 0x10634A94DA1E
• Base-36: 6DXNCH7VI

Squares and roots of 18018639075870

• 18018639075870 squared (18018639075870²) is 324671354146469287616256900
• 18018639075870 cubed (18018639075870³) is 5850135948639198857237128463804511003000
• The square root of 18018639075870 is 4244836.7549141393
• The cube root of 18018639075870 is 26216.4567840403

Scales and comparisons

• 18,018,639,075,870 seconds is equal to 572,936 years, 51 weeks, 2 days, 9 hours, 4 minutes, 30 seconds.
• To count from 1 to 18,018,639,075,870 would take you about one million, four hundred thirty-two thousand, three hundred forty-two 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 18018639075870 cubic inches would be around 2184.7 feet tall.

Recreational maths with 18018639075870

• 18018639075870 backwards is 07857093681081
• The number of decimal digits it has is: 14
• The sum of 18018639075870's digits is 63
• More coming soon!