128427043680

Names of 128427043680

• Cardinal: 128427043680 can be written as One hundred twenty-eight billion, four hundred twenty-seven million, forty-three thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.2842704368 × 10¹¹

Factors of 128427043680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6860442

Divisors of 128427043680

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 65 72 78 80 90 96 104 117 120 130 144 156 160 180 195 208 234 240 260 288 312 360 390 416 468 480 520 585 624 720 780 936 1040 1170 1248 1440 1560 1872 2080 2340 3120 3744 4680 6240 9360 18720 6860419 13720838 20581257 27441676 34302095 41162514 54883352 61743771 68604190 82325028 89185447 102906285 109766704 123487542 137208380 164650056 178370894 205812570 219533408 246975084 267556341 274416760 308718855 329300112 356741788 411625140 445927235 493950168 535112682 548833520 617437710 658600224 713483576 802669023 823250280 891854470 987900336 1070225364 1097667040 1234875420 1337781705 1426967152 1605338046 1646500560 1783708940 1975800672 2140450728 2469750840 2675563410 2853934304 3210676092 3293001120 3567417880 4013345115 4280901456 4939501680 5351126820 6421352184 7134835760 8026690230 8561802912 9879003360 10702253640 12842704368 14269671520 16053380460 21404507280 25685408736 32106760920 42809014560 64213521840 128427043680
• Sum of all divisors σ(n): 471969454320
• Sum of proper divisors (its aliquot sum) s(n): 343542410640
• 128427043680 is an abundant number, because the sum of its proper divisors (343542410640) is greater than itself. Its abundance is 215115366960

Bases of 128427043680

• Binary: 1110111100110110110010010101101100000₂
• Hexadecimal: 0x1DE6D92B60
• Base-36: 1MZY5940

Squares and roots of 128427043680

• 128427043680 squared (128427043680²) is 16493505548384627942400
• 128427043680 cubed (128427043680³) is 2118212157498714966199153324032000
• The square root of 128427043680 is 358367.1911322241
• The cube root of 128427043680 is 5045.2825753741

Scales and comparisons

• 128,427,043,680 seconds is equal to 4,083 years, 30 weeks, 2 days, 2 hours, 48 minutes.
• To count from 1 to 128,427,043,680 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 128427043680 cubic inches would be around 420.4 feet tall.

Recreational maths with 128427043680

• 128427043680 backwards is 086340724821
• 128427043680 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128427043680's digits is 45
• More coming soon!