18398424288541521

Names of 18398424288541521

• Cardinal: 18398424288541521 can be written as Eighteen quadrillion, three hundred ninety-eight trillion, four hundred twenty-four billion, two hundred eighty-eight million, five hundred forty-one thousand, five hundred twenty-one.

Scientific notation

• Scientific notation: 1.8398424288541521 × 10¹⁶

Factors of 18398424288541521

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 420

Divisors of 18398424288541521

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 21 49 79 147 237 331 343 553 993 1029 1659 2317 3871 6241 6951 11613 16219 18723 26149 27097 43687 48657 78447 81291 109561 113533 131061 183043 305809 328683 340599 493039 549129 766927 917427 1281301 1479117 2065771 2140663 2300781 3451273 3843903 5368489 6197313 6421989 8655319 8969107 10353819 14460397 16105467 24158911 25965957 26907321 36264691 37579423 43381191 60587233 72476733 101222779 108794073 112738269 163195909 169112377 181761699 253852837 303668337 424110631 489587727 507337131 683770201 708559453 761558511 1142371363 1272331893 1776969859 2051310603 2125678359 2864910589 2968774417 3427114089 4786391407 5330909577 7996599541 8594731767 8906323251 12438789013 14359174221 20054374123 23989798623 33504739849 37316367039 54017845879 55976196787 60163122369 100514219547 140380618861 162053537637 167928590361 226327936531 234533178943 378124921153 421141856583 678983809593 703599536829 982664332027 1134374763459 1584295555717 2646874448071 2947992996081 4752886667151 7940623344213 11090068890019 17879906985949 18528121136497 33270206670057 53639720957847 55584363409491 77630482230133 125159348901643 232891446690399 375478046704929 876115442311501 2628346326934503 6132808096180507 18398424288541521
• Sum of all divisors σ(n): 29062419625984000
• Sum of proper divisors (its aliquot sum) s(n): 10663995337442479
• 18398424288541521 is a deficient number, because the sum of its proper divisors (10663995337442479) is less than itself. Its deficiency is 7734428951099042

Bases of 18398424288541521

• Binary: 1000001010111010100010011111000001001010011101101010001₂
• Hexadecimal: 0x415D44F8253B51
• Base-36: 515P3FO5QVL

Squares and roots of 18398424288541521

• 18398424288541521 squared (18398424288541521²) is 338502016301194573182017340993441
• 18398424288541521 cubed (18398424288541521³) is 6227903718436176109015260477835002155607117163761
• The square root of 18398424288541521 is 135640791.3886583051
• The cube root of 18398424288541521 is 263993.6880977789

Scales and comparisons

• 18,398,424,288,541,521 seconds is equal to 585,012,982 years, 16 weeks, 1 day, 19 hours, 45 minutes, 21 seconds.
• To count from 1 to 18,398,424,288,541,521 would take you about one billion, seven hundred fifty-five million, thirty-eight thousand, nine hundred forty-six 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 18398424288541521 cubic inches would be around 21999.5 feet tall.

Recreational maths with 18398424288541521

• 18398424288541521 backwards is 12514588242489381
• The number of decimal digits it has is: 17
• The sum of 18398424288541521's digits is 75
• More coming soon!