21339045

Names of 21339045

• Cardinal: 21339045 can be written as Twenty-one million, three hundred thirty-nine thousand and forty-five.

Scientific notation

• Scientific notation: 2.1339045 × 10⁷

Factors of 21339045

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 221

Divisors of 21339045

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 7 9 13 15 21 27 35 39 45 63 65 81 91 105 117 135 189 193 195 243 273 315 351 405 455 567 579 585 819 945 965 1053 1215 1351 1365 1701 1737 1755 2457 2509 2835 2895 3159 4053 4095 5211 5265 6755 7371 7527 8505 8685 12159 12285 12545 15633 15795 17563 20265 22113 22581 26055 36477 36855 37635 46899 52689 60795 67743 78165 87815 109431 110565 112905 158067 182385 203229 234495 263445 328293 338715 474201 547155 609687 790335 1016145 1422603 1641465 2371005 3048435 4267809 7113015 21339045
• Sum of all divisors σ(n): 47453952
• Sum of proper divisors (its aliquot sum) s(n): 26114907
• 21339045 is an abundant number, because the sum of its proper divisors (26114907) is greater than itself. Its abundance is 4775862

Bases of 21339045

• Binary: 1010001011001101110100101₂
• Hexadecimal: 0x1459BA5
• Base-36: CPDB9

Squares and roots of 21339045

• 21339045 squared (21339045²) is 455354841512025
• 21339045 cubed (21339045³) is 9716837453992969516125
• The square root of 21339045 is 4619.4204181911
• The cube root of 21339045 is 277.3692590847

Scales and comparisons

• 21,339,045 seconds is equal to 35 weeks, 1 day, 23 hours, 30 minutes, 45 seconds.
• To count from 1 to 21,339,045 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 21339045 cubic inches would be around 23.1 feet tall.

Recreational maths with 21339045

• 21339045 backwards is 54093312
• 21339045 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21339045's digits is 27
• More coming soon!