21643825140

Names of 21643825140

• Cardinal: 21643825140 can be written as Twenty-one billion, six hundred forty-three million, eight hundred twenty-five thousand, one hundred forty.

Scientific notation

• Scientific notation: 2.164382514 × 10¹⁰

Factors of 21643825140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 135401

Divisors of 21643825140

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 127 140 180 210 252 254 315 381 420 508 630 635 762 889 1143 1260 1270 1524 1778 1905 2286 2540 2667 3556 3810 4445 4572 5334 5715 7620 8001 8890 10668 11430 13335 16002 17780 22860 26670 32004 40005 53340 80010 135257 160020 270514 405771 541028 676285 811542 946799 1217313 1352570 1623084 1893598 2028855 2434626 2705140 2840397 3787196 4057710 4733995 4869252 5680794 6086565 8115420 8521191 9467990 11361588 12173130 14201985 17042382 17177639 18935980 24346260 28403970 34084764 34355278 42605955 51532917 56807940 68710556 85211910 85888195 103065834 120243473 154598751 170423820 171776390 206131668 240486946 257664585 309197502 343552780 360730419 480973892 515329170 601217365 618395004 721460838 772993755 1030658340 1082191257 1202434730 1442921676 1545987510 1803652095 2164382514 2404869460 3091975020 3607304190 4328765028 5410956285 7214608380 10821912570 21643825140
• Sum of all divisors σ(n): 75623288832
• Sum of proper divisors (its aliquot sum) s(n): 53979463692
• 21643825140 is an abundant number, because the sum of its proper divisors (53979463692) is greater than itself. Its abundance is 32335638552

Bases of 21643825140

• Binary: 10100001010000100101000111111110100₂
• Hexadecimal: 0x50A128FF4
• Base-36: 9XY6AD0

Squares and roots of 21643825140

• 21643825140 squared (21643825140²) is 468455166690896019600
• 21643825140 cubed (21643825140³) is 10139161713787305878144412744000
• The square root of 21643825140 is 147118.4051708011
• The cube root of 21643825140 is 2786.8355303595

Scales and comparisons

• 21,643,825,140 seconds is equal to 688 years, 10 weeks, 5 days, 5 hours, 39 minutes.
• To count from 1 to 21,643,825,140 would take you about one thousand, three hundred seventy-six 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 21643825140 cubic inches would be around 232.2 feet tall.

Recreational maths with 21643825140

• 21643825140 backwards is 04152834612
• 21643825140 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21643825140's digits is 36
• More coming soon!