12900018880

Names of 12900018880

• Cardinal: 12900018880 can be written as Twelve billion, nine hundred million, eighteen thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.290001888 × 10¹⁰

Factors of 12900018880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 338792

Divisors of 12900018880

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 17 20 28 32 34 35 40 56 64 68 70 80 85 112 119 136 140 160 170 224 238 272 280 320 340 448 476 544 560 595 680 952 1088 1120 1190 1360 1904 2240 2380 2720 3808 4760 5440 7616 9520 19040 38080 338761 677522 1355044 1693805 2371327 2710088 3387610 4742654 5420176 5758937 6775220 9485308 10840352 11517874 11856635 13550440 18970616 21680704 23035748 23713270 27100880 28794685 37941232 40312559 46071496 47426540 54201760 57589370 75882464 80625118 92142992 94853080 108403520 115178740 151764928 161250236 184285984 189706160 201562795 230357480 322500472 368571968 379412320 403125590 460714960 645000944 758824640 806251180 921429920 1290001888 1612502360 1842859840 2580003776 3225004720 6450009440 12900018880
• Sum of all divisors σ(n): 37171676736
• Sum of proper divisors (its aliquot sum) s(n): 24271657856
• 12900018880 is an abundant number, because the sum of its proper divisors (24271657856) is greater than itself. Its abundance is 11371638976

Bases of 12900018880

• Binary: 1100000000111001101010101011000000₂
• Hexadecimal: 0x300E6AAC0
• Base-36: 5XCC69S

Squares and roots of 12900018880

• 12900018880 squared (12900018880²) is 166410487104356454400
• 12900018880 cubed (12900018880³) is 2146698425476194792009859072000
• The square root of 12900018880 is 113578.2500305407
• The cube root of 12900018880 is 2345.2912430385

Scales and comparisons

• 12,900,018,880 seconds is equal to 410 years, 9 weeks, 2 days, 18 hours, 34 minutes, 40 seconds.
• To count from 1 to 12,900,018,880 would take you about eight hundred twenty 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 12900018880 cubic inches would be around 195.4 feet tall.

Recreational maths with 12900018880

• 12900018880 backwards is 08881000921
• The number of decimal digits it has is: 11
• The sum of 12900018880's digits is 37
• More coming soon!