18185320354638555

Names of 18185320354638555

• Cardinal: 18185320354638555 can be written as Eighteen quadrillion, one hundred eighty-five trillion, three hundred twenty billion, three hundred fifty-four million, six hundred thirty-eight thousand, five hundred fifty-five.

Scientific notation

• Scientific notation: 1.8185320354638555 × 10¹⁶

Factors of 18185320354638555

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 6054

Divisors of 18185320354638555

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 5 9 15 19 31 45 57 93 95 155 171 279 285 465 589 829 855 961 1395 1767 2487 2883 2945 4145 4805 5167 5301 7461 8649 8835 12435 14415 15501 15751 18259 25699 25835 26505 37305 43245 46503 47253 54777 77097 77505 78755 91295 98173 128495 141759 160177 164331 231291 232515 236265 273885 294519 385485 480531 488281 490865 708795 796669 800885 821655 883557 1156455 1441593 1464843 1472595 2390007 2402655 2441405 3043363 3983345 4283443 4394529 4417785 4965487 7170021 7207965 7324215 9130089 11950035 12850329 14896461 15136711 15216815 21417215 21972645 24827435 26697889 27390267 35850105 38550987 44689383 45410133 45650445 64251645 74482305 75683555 80093667 81385417 94344253 132786733 133489445 136230399 136951335 192754935 223446915 227050665 240281001 244156251 283032759 398360199 400468335 406927085 471721265 507259891 663933665 681151995 732468753 827634559 849098277 1195080597 1201405005 1220781255 1415163795 1521779673 1991800995 2482903677 2522947927 2536299455 3662343765 4116388723 4138172795 4245491385 4565339019 5975402985 7448711031 7568843781 7608898365 12349166169 12414518385 12614739635 15725056621 20581943615 22132549981 22706531343 22826695095 25656671329 37047498507 37243555155 37844218905 47175169863 61745830845 66397649943 76970013987 78211385737 78625283105 110662749905 113532656715 128283356645 141525509589 185237492535 199192949829 230910041961 234634157211 235875849315 331988249715 384850069935 391056928685 420518449639 487476755251 686109049411 703902471633 707627547945 995964749145 1154550209805 1173170786055 1261555348917 1462430265753 2058327148233 2102592248195 2437383776255 3430545247055 3519512358165 3784666046751 4387290797259 6174981444699 6307776744585 7312151328765 10291635741165 13036071938809 18923330233755 21269380531741 21936453986295 30874907223495 39108215816427 63808141595223 65180359694045 106346902658705 117324647449281 191424424785669 195541079082135 319040707976115 404118230103079 586623237246405 957122123928345 1212354690309237 2020591150515395 3637064070927711 6061773451546185 18185320354638555
• Sum of all divisors σ(n): 34333092376174800
• Sum of proper divisors (its aliquot sum) s(n): 16147772021536245
• 18185320354638555 is a deficient number, because the sum of its proper divisors (16147772021536245) is less than itself. Its deficiency is 2037548333102310

Bases of 18185320354638555

• Binary: 1000000100110110111001111010111110111010110101011011011₂
• Hexadecimal: 0x409B73D7DD6ADB
• Base-36: 4Z25OU83E8R

Squares and roots of 18185320354638555

• 18185320354638555 squared (18185320354638555²) is 330705876400831339793704692488025
• 18185320354638555 cubed (18185320354638555³) is 6013992305510620316976680961549761033672540803875
• The square root of 18185320354638555 is 134852958.2717359411
• The cube root of 18185320354638555 is 262970.4716791147

Scales and comparisons

• 18,185,320,354,638,555 seconds is equal to 578,236,936 years, 20 weeks, 1 day, 8 hours, 29 minutes, 15 seconds.
• To count from 1 to 18,185,320,354,638,555 would take you about one billion, seven hundred thirty-four million, seven hundred ten thousand, eight hundred nine 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 18185320354638555 cubic inches would be around 21914.2 feet tall.

Recreational maths with 18185320354638555

• 18185320354638555 backwards is 55583645302358181
• The number of decimal digits it has is: 17
• The sum of 18185320354638555's digits is 72
• More coming soon!