128213349579

Names of 128213349579

• Cardinal: 128213349579 can be written as One hundred twenty-eight billion, two hundred thirteen million, three hundred forty-nine thousand, five hundred seventy-nine.

Scientific notation

• Scientific notation: 1.28213349579 × 10¹¹

Factors of 128213349579

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 2723

Divisors of 128213349579

• Number of divisors d(n): 100
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 147 189 243 343 441 567 729 1029 1323 1701 2187 2401 2713 3087 3969 5103 6561 7203 8139 9261 11907 15309 18991 19683 21609 24417 27783 35721 45927 56973 64827 73251 83349 107163 132937 137781 170919 194481 219753 250047 321489 398811 512757 583443 659259 750141 930559 964467 1196433 1538271 1750329 1977777 2250423 2791677 3589299 4614813 5250987 5933331 6513913 6751269 8375031 10767897 13844439 15752961 17799993 19541739 25125093 32303691 41533317 47258883 53399979 58625217 75375279 96911073 124599951 175875651 226125837 290733219 373799853 527626953 678377511 872199657 1582880859 2035132533 2616598971 4748642577 6105397599 14245927731 18316192797 42737783193 128213349579
• Sum of all divisors σ(n): 224438908936
• Sum of proper divisors (its aliquot sum) s(n): 96225559357
• 128213349579 is a deficient number, because the sum of its proper divisors (96225559357) is less than itself. Its deficiency is 31987790222

Bases of 128213349579

• Binary: 1110111011010000111000111010011001011₂
• Hexadecimal: 0x1DDA1C74CB
• Base-36: 1MWEX1OR

Squares and roots of 128213349579

• 128213349579 squared (128213349579²) is 16438663010266859477241
• 128213349579 cubed (128213349579³) is 2107656047146721320233969527431539
• The square root of 128213349579 is 358068.9173594937
• The cube root of 128213349579 is 5042.4826830899

Scales and comparisons

• 128,213,349,579 seconds is equal to 4,076 years, 40 weeks, 6 days, 19 hours, 19 minutes, 39 seconds.
• To count from 1 to 128,213,349,579 would take you about eight thousand, one hundred fifty-three 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 128213349579 cubic inches would be around 420.2 feet tall.

Recreational maths with 128213349579

• 128213349579 backwards is 975943312821
• The number of decimal digits it has is: 12
• The sum of 128213349579's digits is 54
• More coming soon!