21687683004

Names of 21687683004

• Cardinal: 21687683004 can be written as Twenty-one billion, six hundred eighty-seven million, six hundred eighty-three thousand and four.

Scientific notation

• Scientific notation: 2.1687683004 × 10¹⁰

Factors of 21687683004

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 9103

Divisors of 21687683004

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 36 39 52 71 73 78 117 142 146 156 213 219 234 284 292 426 438 468 639 657 852 876 923 949 1278 1314 1846 1898 2556 2628 2769 2847 3692 3796 5183 5538 5694 8307 8541 8941 10366 11076 11388 15549 16614 17082 17882 20732 26823 31098 33228 34164 35764 46647 53646 62196 67379 80469 93294 107292 116233 134758 160938 186588 202137 232466 269516 321876 348699 404274 464932 606411 634811 652693 697398 808548 1046097 1212822 1269622 1305386 1394796 1904433 1958079 2092194 2425644 2539244 2610772 3808866 3916158 4184388 5713299 5874237 7617732 7832316 8252543 8485009 11426598 11748474 16505086 16970018 22853196 23496948 24757629 25455027 33010172 33940036 46341203 49515258 50910054 74272887 76365081 92682406 99030516 101820108 139023609 148545774 152730162 185364812 278047218 297091548 305460324 417070827 556094436 602435639 834141654 1204871278 1668283308 1807306917 2409742556 3614613834 5421920751 7229227668 10843841502 21687683004
• Sum of all divisors σ(n): 60697151424
• Sum of proper divisors (its aliquot sum) s(n): 39009468420
• 21687683004 is an abundant number, because the sum of its proper divisors (39009468420) is greater than itself. Its abundance is 17321785416

Bases of 21687683004

• Binary: 10100001100101011111100011110111100₂
• Hexadecimal: 0x50CAFC7BC
• Base-36: 9YOABB0

Squares and roots of 21687683004

• 21687683004 squared (21687683004²) is 470355594081990464016
• 21687683004 cubed (21687683004³) is 10200923023608307568929876784064
• The square root of 21687683004 is 147267.3860839527
• The cube root of 21687683004 is 2788.7166240701

Scales and comparisons

• 21,687,683,004 seconds is equal to 689 years, 31 weeks, 1 day, 20 hours, 23 minutes, 24 seconds.
• To count from 1 to 21,687,683,004 would take you about one thousand, three hundred seventy-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 21687683004 cubic inches would be around 232.4 feet tall.

Recreational maths with 21687683004

• 21687683004 backwards is 40038678612
• The number of decimal digits it has is: 11
• The sum of 21687683004's digits is 45
• More coming soon!