21084244090

Names of 21084244090

• Cardinal: 21084244090 can be written as Twenty-one billion, eighty-four million, two hundred forty-four thousand and ninety.

Scientific notation

• Scientific notation: 2.108424409 × 10¹⁰

Factors of 21084244090

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1152

Divisors of 21084244090

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 7 10 13 14 26 35 65 70 91 127 130 182 241 254 455 482 635 757 889 910 1205 1270 1514 1651 1687 1778 2410 3133 3302 3374 3785 4445 5299 6266 7570 8255 8435 8890 9841 10598 11557 15665 16510 16870 19682 21931 23114 26495 30607 31330 43862 49205 52990 57785 61214 68887 96139 98410 109655 115570 137774 153035 182437 192278 214249 219310 306070 344435 364874 397891 428498 480695 672973 688870 795782 912185 961390 1071245 1249807 1277059 1345946 1824370 1989455 2142490 2371681 2499614 2554118 2785237 3364865 3978910 4743362 5570474 6249035 6385295 6729730 8748649 11858405 12498070 12770590 13926185 16601767 17497298 23169499 23716810 27852370 33203534 43743245 46338998 83008835 87486490 115847495 162186493 166017670 231694990 301203487 324372986 602406974 810932465 1506017435 1621864930 2108424409 3012034870 4216848818 10542122045 21084244090
• Sum of all divisors σ(n): 47335292928
• Sum of proper divisors (its aliquot sum) s(n): 26251048838
• 21084244090 is an abundant number, because the sum of its proper divisors (26251048838) is greater than itself. Its abundance is 5166804748

Bases of 21084244090

• Binary: 10011101000101110000000100001111010₂
• Hexadecimal: 0x4E8B8087A
• Base-36: 9OP0IUY

Squares and roots of 21084244090

• 21084244090 squared (21084244090²) is 444545348846699928100
• 21084244090 cubed (21084244090³) is 9372902644158021275045849929000
• The square root of 21084244090 is 145204.1462562279
• The cube root of 21084244090 is 2762.6085089133

Scales and comparisons

• 21,084,244,090 seconds is equal to 670 years, 21 weeks, 3 days, 14 hours, 28 minutes, 10 seconds.
• To count from 1 to 21,084,244,090 would take you about one thousand, three hundred forty years!

  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 21084244090 cubic inches would be around 230.2 feet tall.

Recreational maths with 21084244090

• 21084244090 backwards is 09044248012
• The number of decimal digits it has is: 11
• The sum of 21084244090's digits is 34
• More coming soon!