21789009000

Names of 21789009000

• Cardinal: 21789009000 can be written as Twenty-one billion, seven hundred eighty-nine million, nine thousand.

Scientific notation

• Scientific notation: 2.1789009 × 10¹⁰

Factors of 21789009000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1881

Divisors of 21789009000

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 25 30 33 36 40 44 45 50 55 60 66 72 75 88 90 99 100 110 120 125 127 132 150 165 180 198 200 220 225 250 254 264 275 300 330 360 375 381 396 440 450 495 500 508 550 600 635 660 750 762 792 825 900 990 1000 1016 1100 1125 1143 1270 1320 1375 1397 1500 1524 1650 1733 1800 1905 1980 2200 2250 2286 2475 2540 2750 2794 3000 3048 3175 3300 3466 3810 3960 4125 4191 4500 4572 4950 5080 5199 5500 5588 5715 6350 6600 6932 6985 7620 8250 8382 8665 9000 9144 9525 9900 10398 11000 11176 11430 12375 12573 12700 13864 13970 15240 15597 15875 16500 16764 17330 19050 19063 19800 20796 20955 22860 24750 25146 25400 25995 27940 28575 31194 31750 33000 33528 34660 34925 38100 38126 41592 41910 43325 45720 47625 49500 50292 51990 55880 57150 57189 62388 62865 63500 69320 69850 76200 76252 77985 83820 86650 95250 95315 99000 100584 103980 104775 114300 114378 124776 125730 127000 129975 139700 142875 152504 155970 167640 171567 173300 174625 190500 190630 207960 209550 216625 220091 228600 228756 251460 259950 279400 285750 285945 311940 314325 343134 346600 349250 381000 381260 389925 419100 433250 440182 457512 476575 502920 519900 523875 571500 571890 623880 628650 649875 660273 686268 698500 762520 779850 838200 857835 866500 880364 953150 1039800 1047750 1100455 1143000 1143780 1257300 1299750 1320546 1372536 1397000 1429725 1559700 1571625 1715670 1733000 1760728 1906300 1949625 1980819 2095500 2200910 2287560 2382875 2421001 2514600 2599500 2641092 2859450 3119400 3143250 3301365 3431340 3812600 3899250 3961638 4191000 4289175 4401820 4765750 4842002 5199000 5282184 5502275 5718900 6286500 6602730 6862680 7148625 7263003 7798500 7923276 8578350 8803640 9531500 9684004 9904095 11004550 11437800 12105005 12573000 13205460 14297250 14526006 15597000 15846552 16506825 17156700 19063000 19368008 19808190 21445875 21789009 22009100 24210010 26410920 27511375 28594500 29052012 33013650 34313400 36315015 39616380 42891750 43578018 44018200 48420020 49520475 55022750 57189000 58104024 60525025 66027300 72630030 79232760 82534125 85783500 87156036 96840040 99040950 108945045 110045500 121050050 132054600 145260060 165068250 171567000 174312072 181575075 198081900 217890090 220091000 242100100 247602375 290520120 302625125 330136500 363150150 396163800 435780180 484200200 495204750 544725225 605250250 660273000 726300300 871560360 907875375 990409500 1089450450 1210500500 1452600600 1815750750 1980819000 2178900900 2421001000 2723626125 3631501500 4357801800 5447252250 7263003000 10894504500 21789009000
• Sum of all divisors σ(n): 81021358080
• Sum of proper divisors (its aliquot sum) s(n): 59232349080
• 21789009000 is an abundant number, because the sum of its proper divisors (59232349080) is greater than itself. Its abundance is 37443340080

Bases of 21789009000

• Binary: 10100010010101110011110010001101000₂
• Hexadecimal: 0x512B9E468
• Base-36: A0CM2Y0

Squares and roots of 21789009000

• 21789009000 squared (21789009000²) is 474760913202081000000
• 21789009000 cubed (21789009000³) is 10344569810608361727729000000000
• The square root of 21789009000 is 147611.0056872455
• The cube root of 21789009000 is 2793.0528882417

Scales and comparisons

• 21,789,009,000 seconds is equal to 692 years, 42 weeks, 5 days, 14 hours, 30 minutes.
• To count from 1 to 21,789,009,000 would take you about one thousand, three hundred eighty-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 21789009000 cubic inches would be around 232.8 feet tall.

Recreational maths with 21789009000

• 21789009000 backwards is 00090098712
• 21789009000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21789009000's digits is 36
• More coming soon!