128429742947786312

Names of 128429742947786312

• Cardinal: 128429742947786312 can be written as One hundred twenty-eight quadrillion, four hundred twenty-nine trillion, seven hundred forty-two billion, nine hundred forty-seven million, seven hundred eighty-six thousand, three hundred twelve.

Scientific notation

• Scientific notation: 1.28429742947786312 × 10¹⁷

Factors of 128429742947786312

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 113107

Divisors of 128429742947786312

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 8 19 38 59 76 118 152 236 361 472 722 1121 1444 2242 2888 3481 4484 6962 8968 13924 21299 27848 42598 66139 85196 113027 132278 170392 226054 264556 452108 529112 904216 1256641 2147513 2513282 4295026 5026564 6668593 8590052 10053128 13337186 17180104 26674372 40802747 53348744 81605494 126703267 163210988 253406534 326421976 393446987 506813068 786893974 1013626136 1573787948 2407362073 3147575896 4814724146 7475492753 9629448292 12775102729 14950985506 19258896584 25550205458 29901971012 51100410916 59803942024 102200821832 142034362307 242726951851 284068724614 485453903702 568137449228 753731061011 970907807404 1136274898456 1507462122022 1941815614808 3014924244044 4611812085169 6029848488088 9223624170338 14320890159209 18447248340676 28641780318418 36894496681352 44470132599649 57283560636836 88940265199298 114567121273672 177880530398596 272096913024971 355761060797192 544193826049942 844932519393331 1088387652099884 1689865038786662 2176775304199768 3379730077573324 6759460155146648 16053717868473289 32107435736946578 64214871473893156 128429742947786312
• Sum of all divisors σ(n): 258529677859493955
• Sum of proper divisors (its aliquot sum) s(n): 130099934911707643
• 128429742947786312 is an abundant number, because the sum of its proper divisors (130099934911707643) is greater than itself. Its abundance is 1670191963921331

Bases of 128429742947786312

• Binary: 111001000010001100010101110110110111111110101111001001000₂
• Hexadecimal: 0x1C8462BB6FF5E48
• Base-36: Z4KJLEPEWQW

Squares and roots of 128429742947786312

• 128429742947786312 squared (128429742947786312²) is 16494198873634467940881901214561344
• 128429742947786312 cubed (128429742947786312³) is 2118345721470541239791300231226291232790664927523328
• The square root of 128429742947786312 is 358370957.1767588311
• The cube root of 128429742947786312 is 504531.7922221527

Scales and comparisons

• 128,429,742,947,786,312 seconds is equal to 4,083,668,566 years, 23 weeks, 6 days, 23 hours, 18 minutes, 32 seconds.
• To count from 1 to 128,429,742,947,786,312 would take you about twelve billion, two hundred fifty-one million, five thousand, six 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 128429742947786312 cubic inches would be around 42044.3 feet tall.

Recreational maths with 128429742947786312

• 128429742947786312 backwards is 213687749247924821
• The number of decimal digits it has is: 18
• The sum of 128429742947786312's digits is 86
• More coming soon!