21038663800

Names of 21038663800

• Cardinal: 21038663800 can be written as Twenty-one billion, thirty-eight million, six hundred sixty-three thousand, eight hundred.

Scientific notation

• Scientific notation: 2.10386638 × 10¹⁰

Factors of 21038663800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 17397

Divisors of 21038663800

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 20 22 25 28 35 40 44 50 55 56 70 77 79 88 100 110 140 154 158 175 200 220 275 280 308 316 350 385 395 440 550 553 616 632 700 770 790 869 1100 1106 1400 1540 1580 1738 1925 1975 2200 2212 2765 3080 3160 3476 3850 3950 4345 4424 5530 6083 6952 7700 7900 8690 11060 12166 13825 15400 15800 17293 17380 21725 22120 24332 27650 30415 34586 34760 43450 48664 55300 60830 69172 86465 86900 110600 121051 121660 138344 152075 172930 173800 190223 242102 243320 304150 345860 380446 432325 484204 605255 608300 691720 760892 864650 951115 968408 1210510 1216600 1331561 1366147 1521784 1729300 1902230 2421020 2663122 2732294 3026275 3458600 3804460 4755575 4842040 5326244 5464588 6052550 6657805 6830735 7608920 9511150 9563029 10652488 10929176 12105100 13315610 13661470 15027617 19022300 19126058 24210200 26631220 27322940 30055234 33289025 34153675 38044600 38252116 47815145 53262440 54645880 60110468 66578050 68307350 75138085 76504232 95630290 105193319 120220936 133156100 136614700 150276170 191260580 210386638 239075725 266312200 273229400 300552340 375690425 382521160 420773276 478151450 525966595 601104680 751380850 841546552 956302900 1051933190 1502761700 1912605800 2103866380 2629832975 3005523400 4207732760 5259665950 10519331900 21038663800
• Sum of all divisors σ(n): 61760332800
• Sum of proper divisors (its aliquot sum) s(n): 40721669000
• 21038663800 is an abundant number, because the sum of its proper divisors (40721669000) is greater than itself. Its abundance is 19683005200

Bases of 21038663800

• Binary: 10011100110000000001000100001111000₂
• Hexadecimal: 0x4E6008878
• Base-36: 9NXVKVS

Squares and roots of 21038663800

• 21038663800 squared (21038663800²) is 442625374489430440000
• 21038663800 cubed (21038663800³) is 9312246443232223680646072000000
• The square root of 21038663800 is 145047.1088991435
• The cube root of 21038663800 is 2760.6163207395

Scales and comparisons

• 21,038,663,800 seconds is equal to 668 years, 50 weeks, 1 day, 1 hour, 16 minutes, 40 seconds.
• To count from 1 to 21,038,663,800 would take you about one thousand, three hundred thirty-seven 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 21038663800 cubic inches would be around 230.1 feet tall.

Recreational maths with 21038663800

• 21038663800 backwards is 00836683012
• The number of decimal digits it has is: 11
• The sum of 21038663800's digits is 37
• More coming soon!