21109701100

Names of 21109701100

• Cardinal: 21109701100 can be written as Twenty-one billion, one hundred nine million, seven hundred one thousand, one hundred.

Scientific notation

• Scientific notation: 2.11097011 × 10¹⁰

Factors of 21109701100

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2057

Divisors of 21109701100

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 10 19 20 25 31 38 50 62 76 95 100 124 155 190 199 310 380 398 475 589 620 775 796 950 995 1178 1550 1801 1900 1990 2356 2945 3100 3602 3781 3980 4975 5890 6169 7204 7562 9005 9950 11780 12338 14725 15124 18010 18905 19900 24676 29450 30845 34219 36020 37810 45025 55831 58900 61690 68438 75620 90050 94525 111662 117211 123380 136876 154225 171095 180100 189050 223324 234422 279155 308450 342190 358399 378100 468844 558310 586055 616900 684380 716798 855475 1060789 1116620 1172110 1395775 1433596 1710950 1791995 2121578 2344220 2791550 2930275 3421900 3583990 4243156 5303945 5583100 5860550 6809581 7167980 8959975 10607890 11110369 11721100 13619162 17919950 21215780 22220738 26519725 27238324 34047905 35839900 44441476 53039450 55551845 68095810 106078900 111103690 136191620 170239525 211097011 222207380 277759225 340479050 422194022 555518450 680958100 844388044 1055485055 1111036900 2110970110 4221940220 5277425275 10554850550 21109701100
• Sum of all divisors σ(n): 50052352000
• Sum of proper divisors (its aliquot sum) s(n): 28942650900
• 21109701100 is an abundant number, because the sum of its proper divisors (28942650900) is greater than itself. Its abundance is 7832949800

Bases of 21109701100

• Binary: 10011101010001111000111100111101100₂
• Hexadecimal: 0x4EA3C79EC
• Base-36: 9P465M4

Squares and roots of 21109701100

• 21109701100 squared (21109701100²) is 445619480531341210000
• 21109701100 cubed (21109701100³) is 9406894038353882125212331000000
• The square root of 21109701100 is 145291.7791893265
• The cube root of 21109701100 is 2763.7199149257

Scales and comparisons

• 21,109,701,100 seconds is equal to 671 years, 11 weeks, 4 days, 5 hours, 51 minutes, 40 seconds.
• To count from 1 to 21,109,701,100 would take you about one thousand, three hundred forty-two 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 21109701100 cubic inches would be around 230.3 feet tall.

Recreational maths with 21109701100

• 21109701100 backwards is 00110790112
• The number of decimal digits it has is: 11
• The sum of 21109701100's digits is 22
• More coming soon!