21139300

Names of 21139300

• Cardinal: 21139300 can be written as Twenty-one million, one hundred thirty-nine thousand, three hundred.

Scientific notation

• Scientific notation: 2.11393 × 10⁷

Factors of 21139300

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 151

Divisors of 21139300

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 23 25 26 28 35 46 50 52 65 70 91 92 100 101 115 130 140 161 175 182 202 230 260 299 322 325 350 364 404 455 460 505 575 598 644 650 700 707 805 910 1010 1150 1196 1300 1313 1414 1495 1610 1820 2020 2093 2275 2300 2323 2525 2626 2828 2990 3220 3535 4025 4186 4550 4646 5050 5252 5980 6565 7070 7475 8050 8372 9100 9191 9292 10100 10465 11615 13130 14140 14950 16100 16261 17675 18382 20930 23230 26260 29900 30199 32522 32825 35350 36764 41860 45955 46460 52325 58075 60398 65044 65650 70700 81305 91910 104650 116150 120796 131300 150995 162610 183820 209300 211393 229775 232300 301990 325220 406525 422786 459550 603980 754975 813050 845572 919100 1056965 1509950 1626100 2113930 3019900 4227860 5284825 10569650 21139300
• Sum of all divisors σ(n): 59496192
• Sum of proper divisors (its aliquot sum) s(n): 38356892
• 21139300 is an abundant number, because the sum of its proper divisors (38356892) is greater than itself. Its abundance is 17217592

Bases of 21139300

• Binary: 1010000101000111101100100₂
• Hexadecimal: 0x1428F64
• Base-36: CL36S

Squares and roots of 21139300

• 21139300 squared (21139300²) is 446870004490000
• 21139300 cubed (21139300³) is 9446519085915457000000
• The square root of 21139300 is 4597.7494494589
• The cube root of 21139300 is 276.5011025357

Scales and comparisons

• 21,139,300 seconds is equal to 34 weeks, 6 days, 16 hours, 1 minute, 40 seconds.
• To count from 1 to 21,139,300 would take you about three 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 21139300 cubic inches would be around 23 feet tall.

Recreational maths with 21139300

• 21139300 backwards is 00393112
• The number of decimal digits it has is: 8
• The sum of 21139300's digits is 19
• More coming soon!