21789001243949400

Names of 21789001243949400

• Cardinal: 21789001243949400 can be written as Twenty-one quadrillion, seven hundred eighty-nine trillion, one billion, two hundred forty-three million, nine hundred forty-nine thousand, four hundred.

Scientific notation

• Scientific notation: 2.17890012439494 × 10¹⁶

Factors of 21789001243949400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 669587

Divisors of 21789001243949400

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 72 75 81 90 100 108 120 135 150 162 180 200 216 225 243 270 300 324 360 405 450 486 540 600 648 675 810 900 972 1080 1215 1350 1620 1800 1944 2025 2430 2700 3240 4050 4860 5400 6075 8100 9720 12150 16200 24300 48600 669577 1339154 2008731 2678308 3347885 4017462 5356616 6026193 6695770 8034924 10043655 12052386 13391540 16069848 16739425 18078579 20087310 24104772 26783080 30130965 33478850 36157158 40174620 48209544 50218275 54235737 60261930 66957700 72314316 80349240 90392895 100436550 108471474 120523860 133915400 144628632 150654825 162707211 180785790 200873100 216942948 241047720 271178685 301309650 325414422 361571580 401746200 433885896 451964475 542357370 602619300 650828844 723143160 813536055 903928950 1084714740 1205238600 1301657688 1355893425 1627072110 1807857900 2169429480 2711786850 3254144220 3615715800 4067680275 5423573700 6508288440 8135360550 10847147400 16270721100 32541442200 448333358929 896666717858 1345000076787 1793333435716 2241666794645 2690000153574 3586666871432 4035000230361 4483333589290 5380000307148 6725000383935 8070000460722 8966667178580 10760000614296 11208333973225 12105000691083 13450000767870 16140000921444 17933334357160 20175001151805 22416667946450 24210001382166 26900001535740 32280001842888 33625001919675 36315002073249 40350002303610 44833335892900 48420002764332 53800003071480 60525003455415 67250003839350 72630004146498 80700004607220 89666671785800 96840005528664 100875005759025 108945006219747 121050006910830 134500007678700 145260008292996 161400009214440 181575010366245 201750011518050 217890012439494 242100013821660 269000015357400 290520016585992 302625017277075 363150020732490 403500023036100 435780024878988 484200027643320 544725031098735 605250034554150 726300041464980 807000046072200 871560049757976 907875051831225 1089450062197470 1210500069108300 1452600082929960 1815750103662450 2178900124394940 2421000138216600 2723625155493675 3631500207324900 4357800248789880 5447250310987350 7263000414649800 10894500621974700 21789001243949400
• Sum of all divisors σ(n): 75885017665094820
• Sum of proper divisors (its aliquot sum) s(n): 54096016421145420
• 21789001243949400 is an abundant number, because the sum of its proper divisors (54096016421145420) is greater than itself. Its abundance is 32307015177196020

Bases of 21789001243949400

• Binary: 1001101011010001111101100101111001001111111100101011000₂
• Hexadecimal: 0x4D68FB2F27F958
• Base-36: 5YJK0ZHB1I0

Squares and roots of 21789001243949400

• 21789001243949400 squared (21789001243949400²) is 474760575208828500610109760360000
• 21789001243949400 cubed (21789001243949400³) is 10344558763803296874470769605329710333965784000000
• The square root of 21789001243949400 is 147610979.4153178837
• The cube root of 21789001243949400 is 279305.2556835143

Scales and comparisons

• 21,789,001,243,949,400 seconds is equal to 692,822,841 years, 39 weeks, 13 hours, 30 minutes.
• To count from 1 to 21,789,001,243,949,400 would take you about two billion, seventy-eight million, four hundred sixty-eight thousand, five hundred twenty-five 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 21789001243949400 cubic inches would be around 23275.4 feet tall.

Recreational maths with 21789001243949400

• 21789001243949400 backwards is 00494934210098712
• The number of decimal digits it has is: 17
• The sum of 21789001243949400's digits is 63
• More coming soon!