128481406400

Names of 128481406400

• Cardinal: 128481406400 can be written as One hundred twenty-eight billion, four hundred eighty-one million, four hundred six thousand, four hundred.

Scientific notation

• Scientific notation: 1.284814064 × 10¹¹

Factors of 128481406400

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 80300886

Divisors of 128481406400

• Number of divisors d(n): 42
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 80300879 160601758 321203516 401504395 642407032 803008790 1284814064 1606017580 2007521975 2569628128 3212035160 4015043950 5139256256 6424070320 8030087900 12848140640 16060175800 25696281280 32120351600 64240703200 128481406400
• Sum of all divisors σ(n): 316144564560
• Sum of proper divisors (its aliquot sum) s(n): 187663158160
• 128481406400 is an abundant number, because the sum of its proper divisors (187663158160) is greater than itself. Its abundance is 59181751760

Bases of 128481406400

• Binary: 1110111101010000101101010110111000000₂
• Hexadecimal: 0x1DEA16ADC0
• Base-36: 1N0UIFNK

Squares and roots of 128481406400

• 128481406400 squared (128481406400²) is 16507471790521960960000
• 128481406400 cubed (128481406400³) is 2120903191754587734226694144000000
• The square root of 128481406400 is 358443.0308989143
• The cube root of 128481406400 is 5045.9943584621

Scales and comparisons

• 128,481,406,400 seconds is equal to 4,085 years, 16 weeks, 1 day, 7 hours, 33 minutes, 20 seconds.
• To count from 1 to 128,481,406,400 would take you about eight thousand, one hundred seventy 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 128481406400 cubic inches would be around 420.5 feet tall.

Recreational maths with 128481406400

• 128481406400 backwards is 004604184821
• The number of decimal digits it has is: 12
• The sum of 128481406400's digits is 38
• More coming soon!