18738845856648

Names of 18738845856648

• Cardinal: 18738845856648 can be written as Eighteen trillion, seven hundred thirty-eight billion, eight hundred forty-five million, eight hundred fifty-six thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.8738845856648 × 10¹³

Factors of 18738845856648

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 194080503

Divisors of 18738845856648

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 149 162 216 298 324 447 596 648 894 1192 1341 1788 2682 3576 4023 5364 8046 10728 12069 16092 24138 32184 48276 96552 194080349 388160698 582241047 776321396 1164482094 1552642792 1746723141 2328964188 3493446282 4657928376 5240169423 6986892564 10480338846 13973785128 15720508269 20960677692 28917972001 31441016538 41921355384 57835944002 62882033076 86753916003 115671888004 125764066152 173507832006 231343776008 260261748009 347015664012 520523496018 694031328024 780785244027 1041046992036 1561570488054 2082093984072 2342355732081 3123140976108 4684711464162 6246281952216 9369422928324 18738845856648
• Sum of all divisors σ(n): 52838375287500
• Sum of proper divisors (its aliquot sum) s(n): 34099529430852
• 18738845856648 is an abundant number, because the sum of its proper divisors (34099529430852) is greater than itself. Its abundance is 15360683574204

Bases of 18738845856648

• Binary: 100010000101011111010010000000011001110001000₂
• Hexadecimal: 0x110AFA403388
• Base-36: 6N4I900I0

Squares and roots of 18738845856648

• 18738845856648 squared (18738845856648²) is 351144344039213916965795904
• 18738845856648 cubed (18738845856648³) is 6580039736384603544369443287606009569792
• The square root of 18738845856648 is 4328838.8577825347
• The cube root of 18738845856648 is 26561.1951641419

Scales and comparisons

• 18,738,845,856,648 seconds is equal to 595,837 years, 17 weeks, 3 days, 10 minutes, 48 seconds.
• To count from 1 to 18,738,845,856,648 would take you about one million, four hundred eighty-nine thousand, five hundred ninety-three 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 18738845856648 cubic inches would be around 2213.4 feet tall.

Recreational maths with 18738845856648

• 18738845856648 backwards is 84665854883781
• 18738845856648 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18738845856648's digits is 81
• More coming soon!