128002613872

Names of 128002613872

• Cardinal: 128002613872 can be written as One hundred twenty-eight billion, two million, six hundred thirteen thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.28002613872 × 10¹¹

Factors of 128002613872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1849

Divisors of 128002613872

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 7 8 14 16 28 56 73 97 103 112 146 194 206 292 388 412 511 584 679 721 776 824 1022 1168 1358 1442 1552 1567 1648 2044 2716 2884 3134 4088 5432 5768 6268 7081 7519 8176 9991 10864 10969 11536 12536 14162 15038 19982 21938 25072 28324 30076 39964 43876 49567 52633 56648 60152 69937 79928 87752 99134 105266 113296 114391 120304 139874 151999 159856 161401 175504 198268 210532 228782 279748 303998 322802 396536 421064 457564 559496 607996 645604 729343 793072 800737 842128 915128 1063993 1118992 1129807 1215992 1291208 1458686 1601474 1830256 2127986 2259614 2431984 2582416 2917372 3202948 4255972 4519228 5105401 5834744 6405896 8511944 9038456 10210802 11095927 11669488 11782273 12811792 15655897 17023888 18076912 20421604 22191854 23564546 31311794 40843208 44383708 47129092 62623588 77671489 81686416 82475911 88767416 94258184 109591279 125247176 155342978 164951822 177534832 188516368 219182558 250494352 310685956 329903644 438365116 621371912 659807288 876730232 1142880481 1242743824 1319614576 1753460464 2285760962 4571521924 8000163367 9143043848 16000326734 18286087696 32000653468 64001306936 128002613872
• Sum of all divisors σ(n): 293284339712
• Sum of proper divisors (its aliquot sum) s(n): 165281725840
• 128002613872 is an abundant number, because the sum of its proper divisors (165281725840) is greater than itself. Its abundance is 37279111968

Bases of 128002613872

• Binary: 1110111001101100011001110001001110000₂
• Hexadecimal: 0x1DCD8CE270
• Base-36: 1MSXG8Z4

Squares and roots of 128002613872

• 128002613872 squared (128002613872²) is 16384669158064326832384
• 128002613872 cubed (128002613872³) is 2097280479660175362463258017230848
• The square root of 128002613872 is 357774.5293784899
• The cube root of 128002613872 is 5039.7185042665

Scales and comparisons

• 128,002,613,872 seconds is equal to 4,070 years, 4 weeks, 3 days, 17 hours, 37 minutes, 52 seconds.
• To count from 1 to 128,002,613,872 would take you about eight thousand, one hundred forty 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 128002613872 cubic inches would be around 420 feet tall.

Recreational maths with 128002613872

• 128002613872 backwards is 278316200821
• The number of decimal digits it has is: 12
• The sum of 128002613872's digits is 40
• More coming soon!