21083459904

Names of 21083459904

• Cardinal: 21083459904 can be written as Twenty-one billion, eighty-three million, four hundred fifty-nine thousand, nine hundred four.

Scientific notation

• Scientific notation: 2.1083459904 × 10¹⁰

Factors of 21083459904

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2815651

Divisors of 21083459904

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 104 117 144 156 192 208 234 288 312 416 468 576 624 832 936 1248 1872 2496 3744 7488 2815633 5631266 8446899 11262532 16893798 22525064 25340697 33787596 36603229 45050128 50681394 67575192 73206458 90100256 101362788 109809687 135150384 146412916 180200512 202725576 219619374 270300768 292825832 329429061 405451152 439238748 540601536 585651664 658858122 810902304 878477496 1171303328 1317716244 1621804608 1756954992 2342606656 2635432488 3513909984 5270864976 7027819968 10541729952 21083459904
• Sum of all divisors σ(n): 65080564276
• Sum of proper divisors (its aliquot sum) s(n): 43997104372
• 21083459904 is an abundant number, because the sum of its proper divisors (43997104372) is greater than itself. Its abundance is 22913644468

Bases of 21083459904

• Binary: 10011101000101011000001000101000000₂
• Hexadecimal: 0x4E8AC1140
• Base-36: 9OOJPS0

Squares and roots of 21083459904

• 21083459904 squared (21083459904²) is 444512281523575689216
• 21083459904 cubed (21083459904³) is 9371856864337868074294701195264
• The square root of 21083459904 is 145201.4459432137
• The cube root of 21083459904 is 2762.5742586019

Scales and comparisons

• 21,083,459,904 seconds is equal to 670 years, 20 weeks, 1 day, 12 hours, 38 minutes, 24 seconds.
• To count from 1 to 21,083,459,904 would take you about one thousand, three hundred forty 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 21083459904 cubic inches would be around 230.2 feet tall.

Recreational maths with 21083459904

• 21083459904 backwards is 40995438012
• The number of decimal digits it has is: 11
• The sum of 21083459904's digits is 45
• More coming soon!