20388926640

Names of 20388926640

• Cardinal: 20388926640 can be written as Twenty billion, three hundred eighty-eight million, nine hundred twenty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.038892664 × 10¹⁰

Factors of 20388926640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9136

Divisors of 20388926640

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 97 120 194 240 291 388 485 582 776 970 1164 1455 1552 1940 2328 2910 3880 4656 5820 7760 9029 9409 11640 18058 18818 23280 27087 28227 36116 37636 45145 47045 54174 56454 72232 75272 90290 94090 108348 112908 135435 141135 144464 150544 180580 188180 216696 225816 270870 282270 361160 376360 433392 451632 541740 564540 722320 752720 875813 1083480 1129080 1751626 2166960 2258160 2627439 3503252 4379065 5254878 7006504 8758130 10509756 13137195 14013008 17516260 21019512 26274390 35032520 42039024 52548780 70065040 84953861 105097560 169907722 210195120 254861583 339815444 424769305 509723166 679630888 849538610 1019446332 1274307915 1359261776 1699077220 2038892664 2548615830 3398154440 4077785328 5097231660 6796308880 10194463320 20388926640
• Sum of all divisors σ(n): 63871068240
• Sum of proper divisors (its aliquot sum) s(n): 43482141600
• 20388926640 is an abundant number, because the sum of its proper divisors (43482141600) is greater than itself. Its abundance is 23093214960

Bases of 20388926640

• Binary: 10010111111010001100101010010110000₂
• Hexadecimal: 0x4BF4654B0
• Base-36: 9D71GHC

Squares and roots of 20388926640

• 20388926640 squared (20388926640²) is 415708329531301689600
• 20388926640 cubed (20388926640³) is 8475846634450655732962450944000
• The square root of 20388926640 is 142789.7987952921
• The cube root of 20388926640 is 2731.8999346687

Scales and comparisons

• 20,388,926,640 seconds is equal to 648 years, 15 weeks, 5 days, 22 hours, 44 minutes.
• To count from 1 to 20,388,926,640 would take you about one thousand, two hundred ninety-six 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 20388926640 cubic inches would be around 227.7 feet tall.

Recreational maths with 20388926640

• 20388926640 backwards is 04662988302
• 20388926640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20388926640's digits is 48
• More coming soon!