21077304768

Names of 21077304768

• Cardinal: 21077304768 can be written as Twenty-one billion, seventy-seven million, three hundred four thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1077304768 × 10¹⁰

Factors of 21077304768

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2814829

Divisors of 21077304768

• 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 2814811 5629622 8444433 11259244 16888866 22518488 25333299 33777732 36592543 45036976 50666598 67555464 73185086 90073952 101333196 109777629 135110928 146370172 180147904 202666392 219555258 270221856 292740344 329332887 405332784 439110516 540443712 585480688 658665774 810665568 878221032 1170961376 1317331548 1621331136 1756442064 2341922752 2634663096 3512884128 5269326192 7025768256 10538652384 21077304768
• Sum of all divisors σ(n): 65061564568
• Sum of proper divisors (its aliquot sum) s(n): 43984259800
• 21077304768 is an abundant number, because the sum of its proper divisors (43984259800) is greater than itself. Its abundance is 22906955032

Bases of 21077304768

• Binary: 10011101000010011100010010111000000₂
• Hexadecimal: 0x4E84E25C0
• Base-36: 9OKVSG0

Squares and roots of 21077304768

• 21077304768 squared (21077304768²) is 444252776283155533824
• 21077304768 cubed (21077304768³) is 9363651159750191451154180472832
• The square root of 21077304768 is 145180.2492352179
• The cube root of 21077304768 is 2762.3053957849

Scales and comparisons

• 21,077,304,768 seconds is equal to 670 years, 10 weeks, 6 hours, 52 minutes, 48 seconds.
• To count from 1 to 21,077,304,768 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 21077304768 cubic inches would be around 230.2 feet tall.

Recreational maths with 21077304768

• 21077304768 backwards is 86740377012
• The number of decimal digits it has is: 11
• The sum of 21077304768's digits is 45
• More coming soon!