21399916896

Names of 21399916896

• Cardinal: 21399916896 can be written as Twenty-one billion, three hundred ninety-nine million, nine hundred sixteen thousand, eight hundred ninety-six.

Scientific notation

• Scientific notation: 2.1399916896 × 10¹⁰

Factors of 21399916896

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 940657

Divisors of 21399916896

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 79 96 144 158 237 288 316 474 632 711 948 1264 1422 1896 2528 2844 3792 5688 7584 11376 22752 940573 1881146 2821719 3762292 5643438 7524584 8465157 11286876 15049168 16930314 22573752 30098336 33860628 45147504 67721256 74305267 90295008 135442512 148610534 222915801 270885024 297221068 445831602 594442136 668747403 891663204 1188884272 1337494806 1783326408 2377768544 2674989612 3566652816 5349979224 7133305632 10699958448 21399916896
• Sum of all divisors σ(n): 61626408480
• Sum of proper divisors (its aliquot sum) s(n): 40226491584
• 21399916896 is an abundant number, because the sum of its proper divisors (40226491584) is greater than itself. Its abundance is 18826574688

Bases of 21399916896

• Binary: 10011111011100010001101000101100000₂
• Hexadecimal: 0x4FB88D160
• Base-36: 9TWYHK0

Squares and roots of 21399916896

• 21399916896 squared (21399916896²) is 457956443155706274816
• 21399916896 cubed (21399916896³) is 9800229825519862269248137691136
• The square root of 21399916896 is 146287.1043393779
• The cube root of 21399916896 is 2776.3275047057

Scales and comparisons

• 21,399,916,896 seconds is equal to 680 years, 23 weeks, 3 days, 5 hours, 21 minutes, 36 seconds.
• To count from 1 to 21,399,916,896 would take you about one thousand, three hundred sixty 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 21399916896 cubic inches would be around 231.4 feet tall.

Recreational maths with 21399916896

• 21399916896 backwards is 69861999312
• The number of decimal digits it has is: 11
• The sum of 21399916896's digits is 63
• More coming soon!