21093976827

Names of 21093976827

• Cardinal: 21093976827 can be written as Twenty-one billion, ninety-three million, nine hundred seventy-six thousand, eight hundred twenty-seven.

Scientific notation

• Scientific notation: 2.1093976827 × 10¹⁰

Factors of 21093976827

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 21

Divisors of 21093976827

• Number of divisors d(n): 126
• Complete list of divisors:
  1 3 7 9 11 21 27 33 49 63 77 81 99 121 147 189 231 243 297 363 441 539 567 693 847 891 1089 1323 1331 1617 1701 2079 2541 2673 3267 3969 3993 4851 5929 6237 7623 9317 9801 11907 11979 14553 14641 17787 18711 22869 27951 29403 35937 43659 43923 53361 65219 68607 83853 102487 107811 130977 131769 160083 161051 195657 205821 251559 307461 323433 395307 480249 483153 586971 717409 754677 922383 1127357 1185921 1440747 1449459 1760913 1771561 2152227 2264031 2767149 3382071 3557763 4348377 5282739 5314683 6456681 7891499 8301447 10146213 12400927 13045131 15848217 15944049 19370043 23674497 24904341 30438639 37202781 39135393 47832147 58110129 71023491 86806489 91315917 111608343 143496441 174330387 213070473 260419467 273947751 334825029 430489323 639211419 781258401 1004475087 1917634257 2343775203 3013425261 7031325609 21093976827
• Sum of all divisors σ(n): 40431980316
• Sum of proper divisors (its aliquot sum) s(n): 19338003489
• 21093976827 is a deficient number, because the sum of its proper divisors (19338003489) is less than itself. Its deficiency is 1755973338

Bases of 21093976827

• Binary: 10011101001010011001000101011111011₂
• Hexadecimal: 0x4E94C8AFB
• Base-36: 9OUT4OR

Squares and roots of 21093976827

• 21093976827 squared (21093976827²) is 444955858378012987929
• 21093976827 cubed (21093976827³) is 9385888565663699773679356721283
• The square root of 21093976827 is 145237.6563670731
• The cube root of 21093976827 is 2763.0335278003
• Being both a perfect square and a perfect cube, 21093976827 is also a perfect sixth number.

Scales and comparisons

• 21,093,976,827 seconds is equal to 670 years, 37 weeks, 4 days, 6 hours, 27 seconds.
• To count from 1 to 21,093,976,827 would take you about one thousand, three hundred forty-one 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 21093976827 cubic inches would be around 230.3 feet tall.

Recreational maths with 21093976827

• 21093976827 backwards is 72867939012
• The number of decimal digits it has is: 11
• The sum of 21093976827's digits is 54
• More coming soon!