21341940

Names of 21341940

• Cardinal: 21341940 can be written as Twenty-one million, three hundred forty-one thousand, nine hundred forty.

Scientific notation

• Scientific notation: 2.134194 × 10⁷

Factors of 21341940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 319

Divisors of 21341940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 97 114 190 193 194 228 285 291 380 386 388 485 570 579 582 772 965 970 1140 1158 1164 1455 1843 1930 1940 2316 2895 2910 3667 3686 3860 5529 5790 5820 7334 7372 9215 11001 11058 11580 14668 18335 18430 18721 22002 22116 27645 36670 36860 37442 44004 55005 55290 56163 73340 74884 93605 110010 110580 112326 187210 220020 224652 280815 355699 374420 561630 711398 1067097 1123260 1422796 1778495 2134194 3556990 4268388 5335485 7113980 10670970 21341940
• Sum of all divisors σ(n): 63880320
• Sum of proper divisors (its aliquot sum) s(n): 42538380
• 21341940 is an abundant number, because the sum of its proper divisors (42538380) is greater than itself. Its abundance is 21196440

Bases of 21341940

• Binary: 1010001011010011011110100₂
• Hexadecimal: 0x145A6F4
• Base-36: CPFJO

Squares and roots of 21341940

• 21341940 squared (21341940²) is 455478402963600
• 21341940 cubed (21341940³) is 9720792747344973384000
• The square root of 21341940 is 4619.7337585623
• The cube root of 21341940 is 277.3818017843

Scales and comparisons

• 21,341,940 seconds is equal to 35 weeks, 2 days, 19 minutes.
• To count from 1 to 21,341,940 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 21341940 cubic inches would be around 23.1 feet tall.

Recreational maths with 21341940

• 21341940 backwards is 04914312
• The number of decimal digits it has is: 8
• The sum of 21341940's digits is 24
• More coming soon!