129741040040

Names of 129741040040

• Cardinal: 129741040040 can be written as One hundred twenty-nine billion, seven hundred forty-one million, forty thousand and forty.

Scientific notation

• Scientific notation: 1.2974104004 × 10¹¹

Factors of 129741040040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 457166

Divisors of 129741040040

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 31 40 62 124 155 229 248 310 458 620 916 1145 1240 1832 2290 4580 7099 9160 14198 28396 35495 56792 70990 141980 283960 456899 913798 1827596 2284495 3655192 4568990 9137980 14163869 18275960 28327738 56655476 70819345 104629871 113310952 141638690 209259742 283277380 418519484 523149355 566554760 837038968 1046298710 2092597420 3243526001 4185194840 6487052002 12974104004 16217630005 25948208008 32435260010 64870520020 129741040040
• Sum of all divisors σ(n): 302650560000
• Sum of proper divisors (its aliquot sum) s(n): 172909519960
• 129741040040 is an abundant number, because the sum of its proper divisors (172909519960) is greater than itself. Its abundance is 43168479920

Bases of 129741040040

• Binary: 1111000110101001010110010100110101000₂
• Hexadecimal: 0x1E352B29A8
• Base-36: 1NLOGR6W

Squares and roots of 129741040040

• 129741040040 squared (129741040040²) is 16832737470660883201600
• 129741040040 cubed (129741040040³) is 2183896866163821972720548992064000
• The square root of 129741040040 is 360195.8356783155
• The cube root of 129741040040 is 5062.4310944357

Scales and comparisons

• 129,741,040,040 seconds is equal to 4,125 years, 18 weeks, 6 days, 9 hours, 47 minutes, 20 seconds.
• To count from 1 to 129,741,040,040 would take you about eight thousand, two hundred fifty 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 129741040040 cubic inches would be around 421.9 feet tall.

Recreational maths with 129741040040

• 129741040040 backwards is 040040147921
• The number of decimal digits it has is: 12
• The sum of 129741040040's digits is 32
• More coming soon!