128627678272

Names of 128627678272

• Cardinal: 128627678272 can be written as One hundred twenty-eight billion, six hundred twenty-seven million, six hundred seventy-eight thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 1.28627678272 × 10¹¹

Factors of 128627678272

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 45169

Divisors of 128627678272

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 8 16 17 32 34 64 68 136 272 544 1088 2791 5582 11164 22328 42359 44656 47447 84718 89312 94894 169436 178624 189788 338872 379576 677744 720103 759152 1355488 1440206 1518304 2710976 2880412 3036608 5760824 11521648 23043296 46086592 118223969 236447938 472895876 945791752 1891583504 2009807473 3783167008 4019614946 7566334016 8039229892 16078459784 32156919568 64313839136 128627678272
• Sum of all divisors σ(n): 270363208320
• Sum of proper divisors (its aliquot sum) s(n): 141735530048
• 128627678272 is an abundant number, because the sum of its proper divisors (141735530048) is greater than itself. Its abundance is 13107851776

Bases of 128627678272

• Binary: 1110111110010110011101001110001000000₂
• Hexadecimal: 0x1DF2CE9C40
• Base-36: 1N39LJR4

Squares and roots of 128627678272

• 128627678272 squared (128627678272²) is 16545079617645140905984
• 128627678272 cubed (128627678272³) is 2128155178043083958719016551579648
• The square root of 128627678272 is 358647.0106832065
• The cube root of 128627678272 is 5047.9085319927

Scales and comparisons

• 128,627,678,272 seconds is equal to 4,089 years, 50 weeks, 6 hours, 37 minutes, 52 seconds.
• To count from 1 to 128,627,678,272 would take you about eight thousand, one hundred seventy-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 128627678272 cubic inches would be around 420.7 feet tall.

Recreational maths with 128627678272

• 128627678272 backwards is 272876726821
• The number of decimal digits it has is: 12
• The sum of 128627678272's digits is 58
• More coming soon!