128927863168

Names of 128927863168

• Cardinal: 128927863168 can be written as One hundred twenty-eight billion, nine hundred twenty-seven million, eight hundred sixty-three thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 1.28927863168 × 10¹¹

Factors of 128927863168

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 14188

Divisors of 128927863168

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 13 16 26 31 32 52 62 64 104 124 128 179 208 248 358 403 416 496 716 806 832 992 1432 1612 1664 1984 2327 2864 3224 3968 4654 5549 5728 6448 9308 11098 11456 12896 13963 18616 22196 22912 25792 27926 37232 44392 51584 55852 72137 74464 88784 111704 144274 148928 177568 181519 223408 288548 297856 355136 363038 432853 446816 577096 710272 726076 865706 893632 1154192 1452152 1731412 1787264 2308384 2499377 2904304 3462824 4616768 4998754 5627089 5808608 6925648 9233536 9997508 11254178 11617216 13851296 19995016 22508356 23234432 27702592 32491901 39990032 45016712 55405184 64983802 77480687 79980064 90033424 129967604 154961374 159960128 180066848 259935208 309922748 319920256 360133696 519870416 619845496 720267392 1007248931 1039740832 1239690992 2014497862 2079481664 2479381984 4028995724 4158963328 4958763968 8057991448 9917527936 16115982896 32231965792 64463931584 128927863168
• Sum of all divisors σ(n): 287144524800
• Sum of proper divisors (its aliquot sum) s(n): 158216661632
• 128927863168 is an abundant number, because the sum of its proper divisors (158216661632) is greater than itself. Its abundance is 29288798464

Bases of 128927863168

• Binary: 1111000000100101100110001000110000000₂
• Hexadecimal: 0x1E04B31180
• Base-36: 1N88BJWG

Squares and roots of 128927863168

• 128927863168 squared (128927863168²) is 16622393901066530996224
• 128927863168 cubed (128927863168³) is 2143089726401303437545598596677632
• The square root of 128927863168 is 359065.2631040769
• The cube root of 128927863168 is 5051.8323340393

Scales and comparisons

• 128,927,863,168 seconds is equal to 4,099 years, 26 weeks, 2 days, 15 hours, 19 minutes, 28 seconds.
• To count from 1 to 128,927,863,168 would take you about eight thousand, one hundred ninety-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 128927863168 cubic inches would be around 421 feet tall.

Recreational maths with 128927863168

• 128927863168 backwards is 861368729821
• The number of decimal digits it has is: 12
• The sum of 128927863168's digits is 61
• More coming soon!