18021009853455

Names of 18021009853455

• Cardinal: 18021009853455 can be written as Eighteen trillion, twenty-one billion, nine million, eight hundred fifty-three thousand, four hundred fifty-five.

Scientific notation

• Scientific notation: 1.8021009853455 × 10¹³

Factors of 18021009853455

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1432381

Divisors of 18021009853455

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 5 7 15 21 35 49 105 147 245 735 17327 51981 86635 121289 259905 363867 606445 849023 1415039 1819335 2547069 4245115 4245117 7075195 9905273 12735345 21225585 29715819 49526365 69336911 148579095 208010733 346684555 1040053665 24518380753 73555142259 122591903765 171628665271 367775711295 514885995813 858143326355 1201400656897 2574429979065 3604201970691 6007003284485 18021009853455
• Sum of all divisors σ(n): 33543104348160
• Sum of proper divisors (its aliquot sum) s(n): 15522094494705
• 18021009853455 is a deficient number, because the sum of its proper divisors (15522094494705) is less than itself. Its deficiency is 2498915358750

Bases of 18021009853455

• Binary: 100000110001111010111111001000000110000001111₂
• Hexadecimal: 0x1063D7E40C0F
• Base-36: 6DYQJZ7KF

Squares and roots of 18021009853455

• 18021009853455 squared (18021009853455²) is 324756796138322200575437025
• 18021009853455 cubed (18021009853455³) is 5852445423185181069701529498567831171375
• The square root of 18021009853455 is 4245115.9999998823
• The cube root of 18021009853455 is 26217.6065316641

Scales and comparisons

• 18,021,009,853,455 seconds is equal to 573,012 years, 19 weeks, 1 day, 22 hours, 24 minutes, 15 seconds.
• To count from 1 to 18,021,009,853,455 would take you about one million, four hundred thirty-two thousand, five hundred thirty 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 18021009853455 cubic inches would be around 2184.8 feet tall.

Recreational maths with 18021009853455

• 18021009853455 backwards is 55435890012081
• The number of decimal digits it has is: 14
• The sum of 18021009853455's digits is 51
• More coming soon!