21308166160

Names of 21308166160

• Cardinal: 21308166160 can be written as Twenty-one billion, three hundred eight million, one hundred sixty-six thousand, one hundred sixty.

Scientific notation

• Scientific notation: 2.130816616 × 10¹⁰

Factors of 21308166160

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2534

Divisors of 21308166160

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 197 394 788 985 1093 1237 1576 1970 2186 2474 3152 3940 4372 4948 5465 6185 7880 8744 9896 10930 12370 15760 17488 19792 21860 24740 43720 49480 87440 98960 215321 243689 430642 487378 861284 974756 1076605 1218445 1352041 1722568 1949512 2153210 2436890 2704082 3445136 3899024 4306420 4873780 5408164 6760205 8612840 9747560 10816328 13520410 17225680 19495120 21632656 27040820 54081640 108163280 266352077 532704154 1065408308 1331760385 2130816616 2663520770 4261633232 5327041540 10654083080 21308166160
• Sum of all divisors σ(n): 49878812016
• Sum of proper divisors (its aliquot sum) s(n): 28570645856
• 21308166160 is an abundant number, because the sum of its proper divisors (28570645856) is greater than itself. Its abundance is 7262479696

Bases of 21308166160

• Binary: 10011110110000100001101000000010000₂
• Hexadecimal: 0x4F610D010
• Base-36: 9SEBY8G

Squares and roots of 21308166160

• 21308166160 squared (21308166160²) is 454037945102169145600
• 21308166160 cubed (21308166160³) is 9674715977181978330870032896000
• The square root of 21308166160 is 145973.1693154601
• The cube root of 21308166160 is 2772.3540467875

Scales and comparisons

• 21,308,166,160 seconds is equal to 677 years, 27 weeks, 5 days, 7 hours, 2 minutes, 40 seconds.
• To count from 1 to 21,308,166,160 would take you about one thousand, three hundred fifty-five 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 21308166160 cubic inches would be around 231 feet tall.

Recreational maths with 21308166160

• 21308166160 backwards is 06166180312
• The number of decimal digits it has is: 11
• The sum of 21308166160's digits is 34
• More coming soon!