21468960

Names of 21468960

• Cardinal: 21468960 can be written as Twenty-one million, four hundred sixty-eight thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.146896 × 10⁷

Factors of 21468960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 904

Divisors of 21468960

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 32 34 36 40 45 48 51 60 68 72 80 85 90 96 102 120 136 144 153 160 170 180 204 240 255 272 288 306 340 360 408 480 510 544 612 680 720 765 816 877 1020 1224 1360 1440 1530 1632 1754 2040 2448 2631 2720 3060 3508 4080 4385 4896 5262 6120 7016 7893 8160 8770 10524 12240 13155 14032 14909 15786 17540 21048 24480 26310 28064 29818 31572 35080 39465 42096 44727 52620 59636 63144 70160 74545 78930 84192 89454 105240 119272 126288 134181 140320 149090 157860 178908 210480 223635 238544 252576 268362 298180 315720 357816 420960 447270 477088 536724 596360 631440 670905 715632 894540 1073448 1192720 1262880 1341810 1431264 1789080 2146896 2385440 2683620 3578160 4293792 5367240 7156320 10734480 21468960
• Sum of all divisors σ(n): 77660856
• Sum of proper divisors (its aliquot sum) s(n): 56191896
• 21468960 is an abundant number, because the sum of its proper divisors (56191896) is greater than itself. Its abundance is 34722936

Bases of 21468960

• Binary: 1010001111001011100100000₂
• Hexadecimal: 0x1479720
• Base-36: CS5K0

Squares and roots of 21468960

• 21468960 squared (21468960²) is 460916243481600
• 21468960 cubed (21468960³) is 9895392394656731136000
• The square root of 21468960 is 4633.4609095147
• The cube root of 21468960 is 277.9310078437

Scales and comparisons

• 21,468,960 seconds is equal to 35 weeks, 3 days, 11 hours, 36 minutes.
• To count from 1 to 21,468,960 would take you about seventeen 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 21468960 cubic inches would be around 23.2 feet tall.

Recreational maths with 21468960

• 21468960 backwards is 06986412
• 21468960 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21468960's digits is 36
• More coming soon!