21909420000

Names of 21909420000

• Cardinal: 21909420000 can be written as Twenty-one billion, nine hundred nine million, four hundred twenty thousand.

Scientific notation

• Scientific notation: 2.190942 × 10¹⁰

Factors of 21909420000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3144

Divisors of 21909420000

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 27 30 32 36 39 40 45 48 50 52 54 60 65 72 75 78 80 90 96 100 104 108 117 120 125 130 135 144 150 156 160 180 195 200 208 216 225 234 240 250 260 270 288 300 312 325 351 360 375 390 400 416 432 450 468 480 500 520 540 585 600 624 625 650 675 702 720 750 780 800 864 900 936 975 1000 1040 1080 1125 1170 1200 1248 1250 1300 1350 1404 1440 1500 1560 1625 1755 1800 1872 1875 1950 2000 2080 2160 2250 2340 2400 2500 2600 2700 2808 2925 3000 3120 3121 3250 3375 3510 3600 3744 3750 3900 4000 4320 4500 4680 4875 5000 5200 5400 5616 5625 5850 6000 6240 6242 6500 6750 7020 7200 7500 7800 8125 8775 9000 9360 9363 9750 10000 10400 10800 11232 11250 11700 12000 12484 13000 13500 14040 14625 15000 15600 15605 16250 16875 17550 18000 18720 18726 19500 20000 21600 22500 23400 24375 24968 26000 27000 28080 28089 29250 30000 31200 31210 32500 33750 35100 36000 37452 39000 40573 43875 45000 46800 46815 48750 49936 52000 54000 56160 56178 58500 60000 62420 65000 67500 70200 73125 74904 78000 78025 81146 84267 87750 90000 93600 93630 97500 99872 108000 112356 117000 121719 124840 130000 135000 140400 140445 146250 149808 156000 156050 162292 168534 175500 180000 187260 195000 202865 219375 224712 234000 234075 243438 249680 260000 270000 280800 280890 292500 299616 312100 324584 337068 351000 365157 374520 390000 390125 405730 421335 438750 449424 468000 468150 486876 499360 540000 561780 585000 608595 624200 649168 674136 702000 702225 730314 749040 780000 780250 811460 842670 877500 898848 936300 973752 1014325 1095471 1123560 1170000 1170375 1217190 1248400 1298336 1348272 1404000 1404450 1460628 1498080 1560500 1622920 1685340 1755000 1825785 1872600 1947504 1950625 2028650 2106675 2190942 2247120 2340000 2340750 2434380 2496800 2696544 2808900 2921256 3042975 3121000 3245840 3370680 3510000 3511125 3651570 3745200 3895008 3901250 4057300 4213350 4381884 4494240 4681500 4868760 5071625 5477355 5617800 5842512 5851875 6085950 6242000 6491680 6741360 7020000 7022250 7303140 7490400 7802500 8114600 8426700 8763768 9128925 9363000 9737520 10143250 10533375 10954710 11235600 11685024 11703750 12171900 12484000 13482720 14044500 14606280 15214875 15605000 16229200 16853400 17527536 17555625 18257850 18726000 19475040 20286500 21066750 21909420 22471200 23407500 24343800 25358125 27386775 28089000 29212560 30429750 31210000 32458400 33706800 35055072 35111250 36515700 37452000 40573000 42133500 43818840 45644625 46815000 48687600 50716250 52666875 54773550 56178000 58425120 60859500 62420000 67413600 70222500 73031400 76074375 81146000 84267000 87637680 91289250 93630000 97375200 101432500 105333750 109547100 112356000 121719000 136933875 140445000 146062800 152148750 162292000 168534000 175275360 182578500 187260000 202865000 210667500 219094200 228223125 243438000 273867750 280890000 292125600 304297500 337068000 365157000 405730000 421335000 438188400 456446250 486876000 547735500 561780000 608595000 684669375 730314000 811460000 842670000 876376800 912892500 1095471000 1217190000 1369338750 1460628000 1685340000 1825785000 2190942000 2434380000 2738677500 3651570000 4381884000 5477355000 7303140000 10954710000 21909420000
• Sum of all divisors σ(n): 86022588960
• Sum of proper divisors (its aliquot sum) s(n): 64113168960
• 21909420000 is an abundant number, because the sum of its proper divisors (64113168960) is greater than itself. Its abundance is 42203748960

Bases of 21909420000

• Binary: 10100011001111001110011011111100000₂
• Hexadecimal: 0x519E737E0
• Base-36: A2CAWO0

Squares and roots of 21909420000

• 21909420000 squared (21909420000²) is 480022684736400000000
• 21909420000 cubed (21909420000³) is 10517018609417376888000000000000
• The square root of 21909420000 is 148018.3096782285
• The cube root of 21909420000 is 2798.1884540679

Scales and comparisons

• 21,909,420,000 seconds is equal to 696 years, 33 weeks, 6 days, 6 hours.
• To count from 1 to 21,909,420,000 would take you about one thousand, three hundred ninety-three 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 21909420000 cubic inches would be around 233.2 feet tall.

Recreational maths with 21909420000

• 21909420000 backwards is 00002490912
• 21909420000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21909420000's digits is 27
• More coming soon!