128427016640

Names of 128427016640

• Cardinal: 128427016640 can be written as One hundred twenty-eight billion, four hundred twenty-seven million, sixteen thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.2842701664 × 10¹¹

Factors of 128427016640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 11980

Divisors of 128427016640

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 208 260 320 416 520 832 1040 2080 3769 4160 7538 8191 15076 16382 18845 30152 32764 37690 40955 48997 60304 65528 75380 81910 97994 106483 120608 131056 150760 163820 195988 212966 241216 244985 262112 301520 327640 391976 425932 489970 524224 532415 603040 655280 783952 851864 979940 1064830 1206080 1310560 1567904 1703728 1959880 2129660 2621120 3135808 3407456 3919760 4259320 6814912 7839520 8518640 15679040 17037280 30871879 34074560 61743758 123487516 154359395 246975032 308718790 401334427 493950064 617437580 802668854 987900128 1234875160 1605337708 1975800256 2006672135 2469750320 3210675416 4013344270 4939500640 6421350832 8026688540 9879001280 12842701664 16053377080 25685403328 32106754160 64213508320 128427016640
• Sum of all divisors σ(n): 329468805120
• Sum of proper divisors (its aliquot sum) s(n): 201041788480
• 128427016640 is an abundant number, because the sum of its proper divisors (201041788480) is greater than itself. Its abundance is 72614771840

Bases of 128427016640

• Binary: 1110111100110110110001100000111000000₂
• Hexadecimal: 0x1DE6D8C1C0
• Base-36: 1MZY4O8W

Squares and roots of 128427016640

• 128427016640 squared (128427016640²) is 16493498603050836889600
• 128427016640 cubed (128427016640³) is 2118210819545826583986585042944000
• The square root of 128427016640 is 358367.1534055541
• The cube root of 128427016640 is 5045.2822212835

Scales and comparisons

• 128,427,016,640 seconds is equal to 4,083 years, 30 weeks, 1 day, 19 hours, 17 minutes, 20 seconds.
• To count from 1 to 128,427,016,640 would take you about eight thousand, one hundred sixty-seven 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 128427016640 cubic inches would be around 420.4 feet tall.

Recreational maths with 128427016640

• 128427016640 backwards is 046610724821
• The number of decimal digits it has is: 12
• The sum of 128427016640's digits is 41
• More coming soon!