21984923772

Names of 21984923772

• Cardinal: 21984923772 can be written as Twenty-one billion, nine hundred eighty-four million, nine hundred twenty-three thousand, seven hundred seventy-two.

Scientific notation

• Scientific notation: 2.1984923772 × 10¹⁰

Factors of 21984923772

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 740

Divisors of 21984923772

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 127 162 189 252 254 324 378 381 508 567 601 756 762 889 1134 1143 1202 1524 1778 1803 2268 2286 2404 2667 3429 3556 3606 4207 4572 5334 5409 6858 7212 8001 8414 10287 10668 10818 12621 13716 16002 16129 16227 16828 20574 21636 24003 25242 32004 32258 32454 37863 41148 48006 48387 48681 50484 64516 64908 72009 75726 76327 96012 96774 97362 112903 113589 144018 145161 151452 152654 193548 194724 225806 227178 228981 288036 290322 305308 338709 340767 435483 451612 454356 457962 534289 580644 677418 681534 686943 870966 915924 1016127 1068578 1306449 1354836 1363068 1373886 1602867 1741932 2032254 2060829 2137156 2612898 2747772 3048381 3205734 4064508 4121658 4808601 5225796 6096762 6182487 6411468 8243316 9145143 9617202 9693529 12193524 12364974 14425803 18290286 19234404 19387058 24729948 28851606 29080587 36580572 38774116 43277409 57703212 58161174 67854703 86554818 87241761 116322348 135709406 173109636 174483522 203564109 261725283 271418812 348967044 407128218 523450566 610692327 785175849 814256436 1046901132 1221384654 1570351698 1832076981 2442769308 3140703396 3664153962 5496230943 7328307924 10992461886 21984923772
• Sum of all divisors σ(n): 66314774064
• Sum of proper divisors (its aliquot sum) s(n): 44329850292
• 21984923772 is an abundant number, because the sum of its proper divisors (44329850292) is greater than itself. Its abundance is 22344926520

Bases of 21984923772

• Binary: 10100011110011001110101000001111100₂
• Hexadecimal: 0x51E67507C
• Base-36: A3L97R0

Squares and roots of 21984923772

• 21984923772 squared (21984923772²) is 483336873260650707984
• 21984923772 cubed (21984923772³) is 10626124314832230902146071795648
• The square root of 21984923772 is 148273.1390778519
• The cube root of 21984923772 is 2801.3991210003

Scales and comparisons

• 21,984,923,772 seconds is equal to 699 years, 2 weeks, 5 days, 3 hours, 16 minutes, 12 seconds.
• To count from 1 to 21,984,923,772 would take you about one thousand, three hundred ninety-eight 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 21984923772 cubic inches would be around 233.4 feet tall.

Recreational maths with 21984923772

• 21984923772 backwards is 27732948912
• 21984923772 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21984923772's digits is 54
• More coming soon!