21424480

Names of 21424480

• Cardinal: 21424480 can be written as Twenty-one million, four hundred twenty-four thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.142448 × 10⁷

Factors of 21424480

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 109

Divisors of 21424480

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 37 40 44 47 55 56 70 74 77 80 88 94 110 112 140 148 154 160 176 185 188 220 224 235 259 280 296 308 329 352 370 376 385 407 440 470 517 518 560 592 616 658 740 752 770 814 880 940 1034 1036 1120 1184 1232 1295 1316 1480 1504 1540 1628 1645 1739 1760 1880 2035 2068 2072 2464 2585 2590 2632 2849 2960 3080 3256 3290 3478 3619 3760 4070 4136 4144 5170 5180 5264 5698 5920 6160 6512 6580 6956 7238 7520 8140 8272 8288 8695 10340 10360 10528 11396 12173 12320 13024 13160 13912 14245 14476 16280 16544 17390 18095 19129 20680 20720 22792 24346 26320 27824 28490 28952 32560 34780 36190 38258 41360 41440 45584 48692 52640 55648 56980 57904 60865 65120 69560 72380 76516 82720 91168 95645 97384 113960 115808 121730 133903 139120 144760 153032 191290 194768 227920 243460 267806 278240 289520 306064 382580 389536 455840 486920 535612 579040 612128 669515 765160 973840 1071224 1339030 1530320 1947680 2142448 2678060 3060640 4284896 5356120 10712240 21424480
• Sum of all divisors σ(n): 66189312
• Sum of proper divisors (its aliquot sum) s(n): 44764832
• 21424480 is an abundant number, because the sum of its proper divisors (44764832) is greater than itself. Its abundance is 23340352

Bases of 21424480

• Binary: 1010001101110100101100000₂
• Hexadecimal: 0x146E960
• Base-36: CR78G

Squares and roots of 21424480

• 21424480 squared (21424480²) is 459008343270400
• 21424480 cubed (21424480³) is 9834015070229819392000
• The square root of 21424480 is 4628.6585529719
• The cube root of 21424480 is 277.7389333535

Scales and comparisons

• 21,424,480 seconds is equal to 35 weeks, 2 days, 23 hours, 14 minutes, 40 seconds.
• To count from 1 to 21,424,480 would take you about twenty-two 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 21424480 cubic inches would be around 23.1 feet tall.

Recreational maths with 21424480

• 21424480 backwards is 08442412
• The number of decimal digits it has is: 8
• The sum of 21424480's digits is 25
• More coming soon!