21943152

Names of 21943152

• Cardinal: 21943152 can be written as Twenty-one million, nine hundred forty-three thousand, one hundred fifty-two.

Scientific notation

• Scientific notation: 2.1943152 × 10⁷

Factors of 21943152

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2002

Divisors of 21943152

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 33 36 42 44 48 56 63 66 72 77 84 88 99 112 126 132 144 154 168 176 198 231 252 264 308 336 396 462 504 528 616 693 792 924 1008 1232 1386 1584 1848 1979 2772 3696 3958 5544 5937 7916 11088 11874 13853 15832 17811 21769 23748 27706 31664 35622 41559 43538 47496 55412 65307 71244 83118 87076 94992 110824 124677 130614 142488 152383 166236 174152 195921 221648 249354 261228 284976 304766 332472 348304 391842 457149 498708 522456 609532 664944 783684 914298 997416 1044912 1219064 1371447 1567368 1828596 1994832 2438128 2742894 3134736 3657192 5485788 7314384 10971576 21943152
• Sum of all divisors σ(n): 76602240
• Sum of proper divisors (its aliquot sum) s(n): 54659088
• 21943152 is an abundant number, because the sum of its proper divisors (54659088) is greater than itself. Its abundance is 32715936

Bases of 21943152

• Binary: 1010011101101001101110000₂
• Hexadecimal: 0x14ED370
• Base-36: D2BG0

Squares and roots of 21943152

• 21943152 squared (21943152²) is 481501919695104
• 21943152 cubed (21943152³) is 10565669812161460727808
• The square root of 21943152 is 4684.3518228245
• The cube root of 21943152 is 279.9623758969

Scales and comparisons

• 21,943,152 seconds is equal to 36 weeks, 1 day, 23 hours, 19 minutes, 12 seconds.
• To count from 1 to 21,943,152 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 21943152 cubic inches would be around 23.3 feet tall.

Recreational maths with 21943152

• 21943152 backwards is 25134912
• The number of decimal digits it has is: 8
• The sum of 21943152's digits is 27
• More coming soon!