21060549990

Names of 21060549990

• Cardinal: 21060549990 can be written as Twenty-one billion, sixty million, five hundred forty-nine thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 2.106054999 × 10¹⁰

Factors of 21060549990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 874

Divisors of 21060549990

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 107 135 162 214 243 270 321 405 486 535 642 757 810 963 1070 1215 1514 1605 1926 2271 2430 2889 3210 3785 4542 4815 5778 6813 7570 8667 9630 11355 11449 13626 14445 17334 20439 22710 22898 26001 28890 34065 34347 40878 43335 52002 57245 61317 68130 68694 80999 86670 102195 103041 114490 122634 130005 161998 171735 183951 204390 206082 242997 260010 306585 309123 343470 367902 404995 485994 515205 613170 618246 728991 809990 919755 927369 1030410 1214985 1457982 1545615 1839510 1854738 2186973 2429970 2782107 3091230 3644955 4373946 4636845 5564214 6560919 7289910 8666893 9273690 10934865 13121838 13910535 17333786 19682757 21869730 26000679 27821070 32804595 39365514 43334465 52001358 65609190 78002037 86668930 98413785 130003395 156004074 196827570 234006111 260006790 390010185 468012222 702018333 780020370 1170030555 1404036666 2106054999 2340061110 3510091665 4212109998 7020183330 10530274995 21060549990
• Sum of all divisors σ(n): 57396869712
• Sum of proper divisors (its aliquot sum) s(n): 36336319722
• 21060549990 is an abundant number, because the sum of its proper divisors (36336319722) is greater than itself. Its abundance is 15275769732

Bases of 21060549990

• Binary: 10011100111010011100111110101100110₂
• Hexadecimal: 0x4E74E7D66
• Base-36: 9OAWODI

Squares and roots of 21060549990

• 21060549990 squared (21060549990²) is 443546765881289000100
• 21060549990 cubed (21060549990³) is 9341338835745713392243164999000
• The square root of 21060549990 is 145122.5343976599
• The cube root of 21060549990 is 2761.5732641857

Scales and comparisons

• 21,060,549,990 seconds is equal to 669 years, 34 weeks, 2 days, 8 hours, 46 minutes, 30 seconds.
• To count from 1 to 21,060,549,990 would take you about one thousand, three hundred thirty-nine 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 21060549990 cubic inches would be around 230.1 feet tall.

Recreational maths with 21060549990

• 21060549990 backwards is 09994506012
• 21060549990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21060549990's digits is 45
• More coming soon!