128807935094720

Names of 128807935094720

• Cardinal: 128807935094720 can be written as One hundred twenty-eight trillion, eight hundred seven billion, nine hundred thirty-five million, ninety-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2880793509472 × 10¹⁴

Factors of 128807935094720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8214791793

Divisors of 128807935094720

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 140 160 196 224 245 280 320 392 448 490 560 784 980 1120 1568 1960 2240 3136 3920 7840 15680 8214791779 16429583558 32859167116 41073958895 57503542453 65718334232 82147917790 115007084906 131436668464 164295835580 230014169812 262873336928 287517712265 328591671160 402524797171 460028339624 525746673856 575035424530 657183342320 805049594342 920056679248 1150070849060 1314366684640 1610099188684 1840113358496 2012623985855 2300141698120 2628733369280 3220198377368 3680226716992 4025247971710 4600283396240 6440396754736 8050495943420 9200566792480 12880793509472 16100991886840 18401133584960 25761587018944 32201983773680 64403967547360 128807935094720
• Sum of all divisors σ(n): 356801266172520
• Sum of proper divisors (its aliquot sum) s(n): 227993331077800
• 128807935094720 is an abundant number, because the sum of its proper divisors (227993331077800) is greater than itself. Its abundance is 99185395983080

Bases of 128807935094720

• Binary: 11101010010011001101111001101110010111111000000₂
• Hexadecimal: 0x75266F372FC0
• Base-36: 19NPJQTZNK

Squares and roots of 128807935094720

• 128807935094720 squared (128807935094720²) is 16591484143365600215371878400
• 128807935094720 cubed (128807935094720³) is 2137114812663712291837196566175128322048000
• The square root of 128807935094720 is 11349358.3560798715
• The cube root of 128807935094720 is 50502.6545145463

Scales and comparisons

• 128,807,935,094,720 seconds is equal to 4,095,693 years, 47 weeks, 1 day, 2 hours, 45 minutes, 20 seconds.
• To count from 1 to 128,807,935,094,720 would take you about ten million, two hundred thirty-nine thousand, two hundred thirty-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 128807935094720 cubic inches would be around 4208.6 feet tall.

Recreational maths with 128807935094720

• 128807935094720 backwards is 027490539708821
• The number of decimal digits it has is: 15
• The sum of 128807935094720's digits is 65
• More coming soon!