218018712940

Names of 218018712940

• Cardinal: 218018712940 can be written as Two hundred eighteen billion, eighteen million, seven hundred twelve thousand, nine hundred forty.

Scientific notation

• Scientific notation: 2.1801871294 × 10¹¹

Factors of 218018712940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 150

Divisors of 218018712940

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 20 28 35 47 70 89 94 140 178 188 235 329 356 445 470 623 658 890 940 1246 1316 1645 1780 2209 2492 3115 3290 4183 4418 6230 6580 7921 8366 8836 11045 12460 15463 15842 16732 20915 22090 29281 30926 31684 39605 41830 44180 55447 58562 61852 77315 79210 83660 110894 117124 146405 154630 158420 196601 221788 277235 292810 309260 372287 393202 554470 585620 704969 744574 786404 983005 1108940 1376207 1409938 1489148 1861435 1966010 2606009 2752414 2819876 3524845 3722870 3932020 4934783 5212018 5504828 6881035 7049690 7445740 9869566 10424036 13030045 13762070 14099380 17497489 19739132 24673915 26060090 27524140 33133543 34994978 49347830 52120180 66267086 69989956 87487445 98695660 122482423 132534172 165667715 174974890 231934801 244964846 331335430 349949780 463869602 489929692 612412115 662670860 927739204 1159674005 1224824230 1557276521 2319348010 2449648460 3114553042 4638696020 6229106084 7786382605 10900935647 15572765210 21801871294 31145530420 43603742588 54504678235 109009356470 218018712940
• Sum of all divisors σ(n): 540689808960
• Sum of proper divisors (its aliquot sum) s(n): 322671096020
• 218018712940 is an abundant number, because the sum of its proper divisors (322671096020) is greater than itself. Its abundance is 104652383080

Bases of 218018712940

• Binary: 11001011000010111011011000110101101100₂
• Hexadecimal: 0x32C2ED8D6C
• Base-36: 2S5MPNJG

Squares and roots of 218018712940

• 218018712940 squared (218018712940²) is 47532159192014123443600
• 218018712940 cubed (218018712940³) is 10362900170302109519475952680184000
• The square root of 218018712940 is 466924.7401241447
• The cube root of 218018712940 is 6018.6338564723

Scales and comparisons

• 218,018,712,940 seconds is equal to 6,932 years, 16 weeks, 4 days, 17 hours, 35 minutes, 40 seconds.
• To count from 1 to 218,018,712,940 would take you about thirteen thousand, eight hundred sixty-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 218018712940 cubic inches would be around 501.6 feet tall.

Recreational maths with 218018712940

• 218018712940 backwards is 049217810812
• The number of decimal digits it has is: 12
• The sum of 218018712940's digits is 43
• More coming soon!