22121840

Names of 22121840

• Cardinal: 22121840 can be written as Twenty-two million, one hundred twenty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.212184 × 10⁷

Factors of 22121840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 348

Divisors of 22121840

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 40 52 65 80 89 104 130 178 208 239 260 356 445 478 520 712 890 956 1040 1157 1195 1424 1780 1912 2314 2390 3107 3560 3824 4628 4780 5785 6214 7120 9256 9560 11570 12428 15535 18512 19120 21271 23140 24856 31070 42542 46280 49712 62140 85084 92560 106355 124280 170168 212710 248560 276523 340336 425420 553046 850840 1106092 1382615 1701680 2212184 2765230 4424368 5530460 11060920 22121840
• Sum of all divisors σ(n): 56246400
• Sum of proper divisors (its aliquot sum) s(n): 34124560
• 22121840 is an abundant number, because the sum of its proper divisors (34124560) is greater than itself. Its abundance is 12002720

Bases of 22121840

• Binary: 1010100011000110101110000₂
• Hexadecimal: 0x1518D70
• Base-36: D65BK

Squares and roots of 22121840

• 22121840 squared (22121840²) is 489375804985600
• 22121840 cubed (22121840³) is 10825893257762645504000
• The square root of 22121840 is 4703.3860143519
• The cube root of 22121840 is 280.7202545171

Scales and comparisons

• 22,121,840 seconds is equal to 36 weeks, 4 days, 57 minutes, 20 seconds.
• To count from 1 to 22,121,840 would take you about two weeks!

  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 22121840 cubic inches would be around 23.4 feet tall.

Recreational maths with 22121840

• 22121840 backwards is 04812122
• 22121840 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 22121840's digits is 20
• More coming soon!