21413563720

Names of 21413563720

• Cardinal: 21413563720 can be written as Twenty-one billion, four hundred thirteen million, five hundred sixty-three thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.141356372 × 10¹⁰

Factors of 21413563720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 20394

Divisors of 21413563720

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 887 1240 1774 3548 4435 7096 8870 17740 19469 27497 35480 38938 54994 77876 97345 109988 137485 155752 194690 219976 274970 389380 549940 603539 778760 1099880 1207078 2414156 3017695 4828312 6035390 12070780 17269003 24141560 34538006 69076012 86345015 138152024 172690030 345380060 535339093 690760120 1070678186 2141356372 2676695465 4282712744 5353390930 10706781860 21413563720
• Sum of all divisors σ(n): 49793356800
• Sum of proper divisors (its aliquot sum) s(n): 28379793080
• 21413563720 is an abundant number, because the sum of its proper divisors (28379793080) is greater than itself. Its abundance is 6966229360

Bases of 21413563720

• Binary: 10011111100010110010000110101001000₂
• Hexadecimal: 0x4FC590D48
• Base-36: 9U52ZIG

Squares and roots of 21413563720

• 21413563720 squared (21413563720²) is 458540711190500238400
• 21413563720 cubed (21413563720³) is 9818990737291893913653590848000
• The square root of 21413563720 is 146333.7408802221
• The cube root of 21413563720 is 2776.9175381791

Scales and comparisons

• 21,413,563,720 seconds is equal to 680 years, 46 weeks, 4 hours, 8 minutes, 40 seconds.
• To count from 1 to 21,413,563,720 would take you about one thousand, three hundred sixty-one 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 21413563720 cubic inches would be around 231.4 feet tall.

Recreational maths with 21413563720

• 21413563720 backwards is 02736531412
• The number of decimal digits it has is: 11
• The sum of 21413563720's digits is 34
• More coming soon!