21322420

Names of 21322420

• Cardinal: 21322420 can be written as Twenty-one million, three hundred twenty-two thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.132242 × 10⁷

Factors of 21322420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 62

Divisors of 21322420

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 10 14 17 20 28 31 34 35 62 68 70 85 119 124 140 155 170 217 238 289 310 340 434 476 527 578 595 620 868 1054 1085 1156 1190 1445 2023 2108 2170 2380 2635 2890 3689 4046 4340 4913 5270 5780 7378 8092 8959 9826 10115 10540 14756 17918 18445 19652 20230 24565 34391 35836 36890 40460 44795 49130 62713 68782 73780 89590 98260 125426 137564 152303 171955 179180 250852 304606 313565 343910 609212 627130 687820 761515 1066121 1254260 1523030 2132242 3046060 4264484 5330605 10661210 21322420
• Sum of all divisors σ(n): 56125440
• Sum of proper divisors (its aliquot sum) s(n): 34803020
• 21322420 is an abundant number, because the sum of its proper divisors (34803020) is greater than itself. Its abundance is 13480600

Bases of 21322420

• Binary: 1010001010101101010110100₂
• Hexadecimal: 0x1455AB4
• Base-36: CP0HG

Squares and roots of 21322420

• 21322420 squared (21322420²) is 454645594656400
• 21322420 cubed (21322420³) is 9694144320413516488000
• The square root of 21322420 is 4617.6205993997
• The cube root of 21322420 is 277.2972086565

Scales and comparisons

• 21,322,420 seconds is equal to 35 weeks, 1 day, 18 hours, 53 minutes, 40 seconds.
• To count from 1 to 21,322,420 would take you about six days!

  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 21322420 cubic inches would be around 23.1 feet tall.

Recreational maths with 21322420

• 21322420 backwards is 02422312
• The number of decimal digits it has is: 8
• The sum of 21322420's digits is 16
• More coming soon!