129801678400

Names of 129801678400

• Cardinal: 129801678400 can be written as One hundred twenty-nine billion, eight hundred one million, six hundred seventy-eight thousand, four hundred.

Scientific notation

• Scientific notation: 1.298016784 × 10¹¹

Factors of 129801678400

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9014

Divisors of 129801678400

• Number of divisors d(n): 63
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 9007 18014 36028 45035 72056 90070 144112 180140 225175 288224 360280 450350 576448 720560 900700 1441120 1801400 2882240 3602800 7205600 14411200 81126049 162252098 324504196 405630245 649008392 811260490 1298016784 1622520980 2028151225 2596033568 3245041960 4056302450 5192067136 6490083920 8112604900 12980167840 16225209800 25960335680 32450419600 64900839200 129801678400
• Sum of all divisors σ(n): 319428719409
• Sum of proper divisors (its aliquot sum) s(n): 189627041009
• 129801678400 is an abundant number, because the sum of its proper divisors (189627041009) is greater than itself. Its abundance is 59825362609

Bases of 129801678400

• Binary: 1111000111000110010000110111001000000₂
• Hexadecimal: 0x1E38C86E40
• Base-36: 1NMOKG1S

Squares and roots of 129801678400

• 129801678400 squared (129801678400²) is 16848475715457026560000
• 129801678400 cubed (129801678400³) is 2186960426347962870561378304000000
• 129801678400 is a perfect square number. Its square root is 360280
• The cube root of 129801678400 is 5063.2196645147

Scales and comparisons

• 129,801,678,400 seconds is equal to 4,127 years, 15 weeks, 1 day, 5 hours, 46 minutes, 40 seconds.
• To count from 1 to 129,801,678,400 would take you about eight thousand, two hundred fifty-four 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 129801678400 cubic inches would be around 421.9 feet tall.

Recreational maths with 129801678400

• 129801678400 backwards is 004876108921
• The number of decimal digits it has is: 12
• The sum of 129801678400's digits is 46
• More coming soon!