128328401280

Names of 128328401280

• Cardinal: 128328401280 can be written as One hundred twenty-eight billion, three hundred twenty-eight million, four hundred one thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.2832840128 × 10¹¹

Factors of 128328401280

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 66837719

Divisors of 128328401280

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 480 640 960 1920 66837709 133675418 200513127 267350836 334188545 401026254 534701672 668377090 802052508 1002565635 1069403344 1336754180 1604105016 2005131270 2138806688 2673508360 3208210032 4010262540 4277613376 5347016720 6416420064 8020525080 8555226752 10694033440 12832840128 16041050160 21388066880 25665680256 32082100320 42776133760 64164200640 128328401280
• Sum of all divisors σ(n): 409046785200
• Sum of proper divisors (its aliquot sum) s(n): 280718383920
• 128328401280 is an abundant number, because the sum of its proper divisors (280718383920) is greater than itself. Its abundance is 152389982640

Bases of 128328401280

• Binary: 1110111100000111110000000000110000000₂
• Hexadecimal: 0x1DE0F80180
• Base-36: 1MYBF05C

Squares and roots of 128328401280

• 128328401280 squared (128328401280²) is 16468178575080705638400
• 128328401280 cubed (128328401280³) is 2113335028533655401550153777152000
• The square root of 128328401280 is 358229.5371406439
• The cube root of 128328401280 is 5043.9905155887

Scales and comparisons

• 128,328,401,280 seconds is equal to 4,080 years, 23 weeks, 1 day, 10 hours, 8 minutes.
• To count from 1 to 128,328,401,280 would take you about eight thousand, one hundred sixty 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 128328401280 cubic inches would be around 420.3 feet tall.

Recreational maths with 128328401280

• 128328401280 backwards is 082104823821
• The number of decimal digits it has is: 12
• The sum of 128328401280's digits is 39
• More coming soon!