128940640000

Names of 128940640000

• Cardinal: 128940640000 can be written as One hundred twenty-eight billion, nine hundred forty million, six hundred forty thousand.

Scientific notation

• Scientific notation: 1.2894064 × 10¹¹

Factors of 128940640000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 187

Divisors of 128940640000

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 79 80 100 101 125 128 158 160 200 202 250 256 316 320 395 400 404 500 505 625 632 640 790 800 808 1000 1010 1250 1264 1280 1580 1600 1616 1975 2000 2020 2500 2525 2528 3160 3200 3232 3950 4000 4040 5000 5050 5056 6320 6400 6464 7900 7979 8000 8080 9875 10000 10100 10112 10201 12625 12640 12928 15800 15958 16000 16160 19750 20000 20200 20224 20402 25250 25280 25856 31600 31916 32000 32320 39500 39895 40000 40400 40804 49375 50500 50560 51005 63125 63200 63832 64640 79000 79790 80000 80800 81608 98750 101000 101120 102010 126250 126400 127664 129280 158000 159580 160000 161600 163216 197500 199475 202000 204020 252500 252800 255025 255328 316000 319160 323200 326432 395000 398950 404000 408040 505000 505600 510050 510656 632000 638320 646400 652864 790000 797900 805879 808000 816080 997375 1010000 1020100 1021312 1264000 1275125 1276640 1305728 1580000 1595800 1611758 1616000 1632160 1994750 2020000 2040200 2042624 2528000 2550250 2553280 2611456 3160000 3191600 3223516 3232000 3264320 3989500 4029395 4040000 4080400 4986875 5100500 5106560 6320000 6375625 6383200 6447032 6528640 7979000 8058790 8080000 8160800 9973750 10201000 10213120 12640000 12751250 12766400 12894064 13057280 15958000 16117580 16160000 16321600 19947500 20146975 20402000 25502500 25532800 25788128 31916000 32235160 32643200 39895000 40293950 40804000 51005000 51065600 51576256 63832000 64470320 65286400 79790000 80587900 81608000 100734875 102010000 103152512 127664000 128940640 159580000 161175800 163216000 201469750 204020000 206305024 255328000 257881280 319160000 322351600 326432000 402939500 408040000 503674375 515762560 638320000 644703200 805879000 816080000 1007348750 1031525120 1276640000 1289406400 1611758000 1632160000 2014697500 2578812800 3223516000 4029395000 5157625600 6447032000 8058790000 12894064000 16117580000 25788128000 32235160000 64470320000 128940640000
• Sum of all divisors σ(n): 328946765840
• Sum of proper divisors (its aliquot sum) s(n): 200006125840
• 128940640000 is an abundant number, because the sum of its proper divisors (200006125840) is greater than itself. Its abundance is 71065485840

Bases of 128940640000

• Binary: 1111000000101011101100000011100000000₂
• Hexadecimal: 0x1E05760700
• Base-36: 1N8FXEKG

Squares and roots of 128940640000

• 128940640000 squared (128940640000²) is 16625688643609600000000
• 128940640000 cubed (128940640000³) is 2143726934147753734144000000000000
• The square root of 128940640000 is 359083.0544595495
• The cube root of 128940640000 is 5051.9992084433

Scales and comparisons

• 128,940,640,000 seconds is equal to 4,099 years, 47 weeks, 3 days, 12 hours, 26 minutes, 40 seconds.
• To count from 1 to 128,940,640,000 would take you about eight thousand, one 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 128940640000 cubic inches would be around 421 feet tall.

Recreational maths with 128940640000

• 128940640000 backwards is 000046049821
• The number of decimal digits it has is: 12
• The sum of 128940640000's digits is 34
• More coming soon!