20945966400

Names of 20945966400

• Cardinal: 20945966400 can be written as Twenty billion, nine hundred forty-five million, nine hundred sixty-six thousand, four hundred.

Scientific notation

• Scientific notation: 2.09459664 × 10¹⁰

Factors of 20945966400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 39360

Divisors of 20945966400

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 37 40 45 48 50 60 64 72 74 75 80 90 96 100 111 120 144 148 150 160 180 185 192 200 222 225 240 288 296 300 320 333 360 370 400 444 450 480 555 576 592 600 666 720 740 800 888 900 925 960 1110 1184 1200 1332 1440 1480 1600 1665 1776 1800 1850 2220 2368 2400 2664 2775 2880 2960 3330 3552 3600 3700 4440 4800 5328 5550 5920 6660 7104 7200 7400 8325 8880 10656 11100 11840 13320 14400 14800 16650 17760 21312 22200 26640 29600 33300 35520 39313 44400 53280 59200 66600 78626 88800 106560 117939 133200 157252 177600 196565 235878 266400 314504 353817 393130 471756 532800 589695 629008 707634 786260 943512 982825 1179390 1258016 1415268 1454581 1572520 1769085 1887024 1965650 2358780 2516032 2830536 2909162 2948475 3145040 3538170 3774048 3931300 4363743 4717560 5661072 5818324 5896950 6290080 7076340 7272905 7548096 7862600 8727486 8845425 9435120 11322144 11636648 11793900 12580160 13091229 14152680 14545810 15725200 17454972 17690850 18870240 21818715 22644288 23273296 23587800 26182458 28305360 29091620 31450400 34909944 35381700 36364525 37740480 43637430 46546592 47175600 52364916 56610720 58183240 62900800 65456145 69819888 70763400 72729050 87274860 93093184 94351200 104729832 109093575 113221440 116366480 130912290 139639776 141526800 145458100 174549720 188702400 209459664 218187150 232732960 261824580 279279552 283053600 290916200 327280725 349099440 418919328 436374300 465465920 523649160 566107200 581832400 654561450 698198880 837838656 872748600 1047298320 1163664800 1309122900 1396397760 1745497200 2094596640 2327329600 2618245800 3490994400 4189193280 5236491600 6981988800 10472983200 20945966400
• Sum of all divisors σ(n): 76460933692
• Sum of proper divisors (its aliquot sum) s(n): 55514967292
• 20945966400 is an abundant number, because the sum of its proper divisors (55514967292) is greater than itself. Its abundance is 34569000892

Bases of 20945966400

• Binary: 10011100000011110100001010101000000₂
• Hexadecimal: 0x4E07A1540
• Base-36: 9MEOR40

Squares and roots of 20945966400

• 20945966400 squared (20945966400²) is 438733508429928960000
• 20945966400 cubed (20945966400³) is 9189697326127408750546944000000
• The square root of 20945966400 is 144727.2137505591
• The cube root of 20945966400 is 2756.5558804097

Scales and comparisons

• 20,945,966,400 seconds is equal to 666 years, 6 days, 4 hours.
• To count from 1 to 20,945,966,400 would take you about one thousand, three hundred thirty-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 20945966400 cubic inches would be around 229.7 feet tall.

Recreational maths with 20945966400

• 20945966400 backwards is 00466954902
• 20945966400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20945966400's digits is 45
• More coming soon!