21080304

Names of 21080304

• Cardinal: 21080304 can be written as Twenty-one million, eighty thousand, three hundred four.

Scientific notation

• Scientific notation: 2.1080304 × 10⁷

Factors of 21080304

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 6983

Divisors of 21080304

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 84 108 112 126 144 168 189 216 252 336 378 432 504 756 1008 1512 3024 6971 13942 20913 27884 41826 48797 55768 62739 83652 97594 111536 125478 146391 167304 188217 195188 250956 292782 334608 376434 390376 439173 501912 585564 752868 780752 878346 1003824 1171128 1317519 1505736 1756692 2342256 2635038 3011472 3513384 5270076 7026768 10540152 21080304
• Sum of all divisors σ(n): 69162240
• Sum of proper divisors (its aliquot sum) s(n): 48081936
• 21080304 is an abundant number, because the sum of its proper divisors (48081936) is greater than itself. Its abundance is 27001632

Bases of 21080304

• Binary: 1010000011010100011110000₂
• Hexadecimal: 0x141A8F0
• Base-36: CJTO0

Squares and roots of 21080304

• 21080304 squared (21080304²) is 444379216732416
• 21080304 cubed (21080304³) is 9367648980001215934464
• The square root of 21080304 is 4591.3292193003
• The cube root of 21080304 is 276.2436411933

Scales and comparisons

• 21,080,304 seconds is equal to 34 weeks, 5 days, 23 hours, 38 minutes, 24 seconds.
• To count from 1 to 21,080,304 would take you about twenty-three hours!

  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 21080304 cubic inches would be around 23 feet tall.

Recreational maths with 21080304

• 21080304 backwards is 40308012
• 21080304 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21080304's digits is 18
• More coming soon!