18309720975

Names of 18309720975

• Cardinal: 18309720975 can be written as Eighteen billion, three hundred nine million, seven hundred twenty thousand, nine hundred seventy-five.

Scientific notation

• Scientific notation: 1.8309720975 × 10¹⁰

Factors of 18309720975

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 947

Divisors of 18309720975

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 13 15 19 21 23 25 35 39 49 57 65 69 75 91 95 105 115 133 147 161 175 195 245 247 273 285 299 325 345 399 437 455 475 483 525 575 637 665 735 741 805 877 897 931 975 1127 1225 1235 1311 1365 1425 1495 1725 1729 1911 1995 2093 2185 2275 2415 2631 2793 3059 3185 3325 3381 3675 3705 4025 4385 4485 4655 5187 5635 5681 6139 6175 6279 6555 6825 7475 8645 9177 9555 9975 10465 10925 11401 12075 12103 13155 13965 14651 15295 15925 16663 16905 17043 18417 18525 20171 21413 21925 22425 23275 25935 28175 28405 30695 31395 32775 34203 36309 39767 42973 43225 43953 45885 47775 49989 52325 57005 60513 60515 64239 65775 69825 73255 76475 79807 83315 84525 85215 92085 100855 107065 116641 119301 128919 129675 141197 142025 153475 156975 171015 181545 198835 214865 216619 219765 229425 239421 249945 262223 278369 285025 302565 302575 321195 349923 366275 383249 399035 416575 423591 426075 460425 504275 535325 558649 583205 596505 644595 649857 705985 786669 816487 835107 855075 907725 988379 994175 1074325 1083095 1098825 1149747 1197105 1249725 1311115 1391845 1512825 1516333 1605975 1675947 1749615 1835561 1916245 1995175 2117955 2449461 2682743 2793245 2916025 2965137 2982525 3222975 3249285 3529925 3933345 4082435 4175535 4548999 4941895 4982237 5415475 5506683 5748735 5985525 6555575 6959225 7581665 8048229 8379735 8748075 9177805 9581225 10589775 10614331 12247305 12848927 13413715 13966225 14825685 14946711 16246425 18779201 19666725 20412175 20877675 22744995 24709475 24911185 27533415 28743675 31842993 34875659 37908325 38546781 40241145 41898675 45889025 53071655 56337603 61236525 64244635 67068575 74128425 74733555 93896005 104626977 113724975 124555925 137667075 159214965 174378295 192733905 201205725 244129613 265358275 281688015 321223175 373667775 469480025 523134885 732388839 796074825 871891475 963669525 1220648065 1408440075 2615674425 3661944195 6103240325 18309720975
• Sum of all divisors σ(n): 41702330880
• Sum of proper divisors (its aliquot sum) s(n): 23392609905
• 18309720975 is an abundant number, because the sum of its proper divisors (23392609905) is greater than itself. Its abundance is 5082888930

Bases of 18309720975

• Binary: 10001000011010110000010101110001111₂
• Hexadecimal: 0x443582B8F
• Base-36: 8ET4V4F

Squares and roots of 18309720975

• 18309720975 squared (18309720975²) is 335245882182354950625
• 18309720975 cubed (18309720975³) is 6138258560776643214353651859375
• The square root of 18309720975 is 135313.4175719469
• The cube root of 18309720975 is 2635.6874501819

Scales and comparisons

• 18,309,720,975 seconds is equal to 582 years, 10 weeks, 1 hour, 36 minutes, 15 seconds.
• To count from 1 to 18,309,720,975 would take you about one thousand, one hundred sixty-four 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 18309720975 cubic inches would be around 219.6 feet tall.

Recreational maths with 18309720975

• 18309720975 backwards is 57902790381
• The number of decimal digits it has is: 11
• The sum of 18309720975's digits is 51
• More coming soon!