18940145559688448

Names of 18940145559688448

• Cardinal: 18940145559688448 can be written as Eighteen quadrillion, nine hundred forty trillion, one hundred forty-five billion, five hundred fifty-nine million, six hundred eighty-eight thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 1.8940145559688448 × 10¹⁶

Factors of 18940145559688448

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3893944399628

Divisors of 18940145559688448

• Number of divisors d(n): 36
• Complete list of divisors:
  1 2 4 8 16 19 32 38 64 76 128 152 256 304 608 1216 2432 4864 3893944399607 7787888799214 15575777598428 31151555196856 62303110393712 73984943592533 124606220787424 147969887185066 249212441574848 295939774370132 498424883149696 591879548740264 996849766299392 1183759097480528 2367518194961056 4735036389922112 9470072779844224 18940145559688448
• Sum of all divisors σ(n): 39796111763993760
• Sum of proper divisors (its aliquot sum) s(n): 20855966204305312
• 18940145559688448 is an abundant number, because the sum of its proper divisors (20855966204305312) is greater than itself. Its abundance is 1915820644616864

Bases of 18940145559688448

• Binary: 1000011010010011111011001001000000101000101010100000000₂
• Hexadecimal: 0x4349F648145500
• Base-36: 56HPYR266M8

Squares and roots of 18940145559688448

• 18940145559688448 squared (18940145559688448²) is 358729113822186033141078824648704
• 18940145559688448 cubed (18940145559688448³) is 6794381632290248652221487251283000235377286971392
• The square root of 18940145559688448 is 137623201.3858435427
• The cube root of 18940145559688448 is 266559.6671612065

Scales and comparisons

• 18,940,145,559,688,448 seconds is equal to 602,238,043 years, 4 weeks, 1 day, 13 hours, 54 minutes, 8 seconds.
• To count from 1 to 18,940,145,559,688,448 would take you about one billion, eight hundred six million, seven hundred fourteen thousand, one hundred twenty-nine 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 18940145559688448 cubic inches would be around 22213.3 feet tall.

Recreational maths with 18940145559688448

• 18940145559688448 backwards is 84488695554104981
• The number of decimal digits it has is: 17
• The sum of 18940145559688448's digits is 89
• More coming soon!