18405426039

Names of 18405426039

• Cardinal: 18405426039 can be written as Eighteen billion, four hundred five million, four hundred twenty-six thousand and thirty-nine.

Scientific notation

• Scientific notation: 1.8405426039 × 10¹⁰

Factors of 18405426039

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 71

Divisors of 18405426039

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 11 13 21 33 37 39 77 91 111 121 143 231 259 273 363 407 429 481 777 847 1001 1221 1331 1369 1443 1573 2541 2849 3003 3367 3993 4107 4477 4719 5291 8547 9317 9583 10101 11011 13431 15059 15873 17303 17797 27951 28749 31339 33033 37037 45177 49247 50653 51909 53391 58201 94017 105413 111111 121121 124579 147741 151959 165649 174603 195767 316239 344729 354571 363363 373737 407407 496947 557183 587301 640211 658489 1034187 1063713 1159543 1222221 1370369 1671549 1822139 1920633 1975467 2153437 3478629 3900281 4111107 4481477 4609423 5466417 6129013 6460311 7243379 11700843 12754973 13444431 13828269 15074059 18387039 21730137 23687807 38264919 42903091 45222177 50703653 67419143 71063421 79677169 128709273 152110959 165814649 202257429 239031507 471934001 497443947 557740183 876448859 1415802003 1673220549 2629346577 6135142013 18405426039
• Sum of all divisors σ(n): 34144696320
• Sum of proper divisors (its aliquot sum) s(n): 15739270281
• 18405426039 is a deficient number, because the sum of its proper divisors (15739270281) is less than itself. Its deficiency is 2666155758

Bases of 18405426039

• Binary: 10001001001000011001000001101110111₂
• Hexadecimal: 0x4490C8377
• Base-36: 8GE45MF

Squares and roots of 18405426039

• 18405426039 squared (18405426039²) is 338759707677099229521
• 18405426039 cubed (18405426039³) is 6235016744644110363012650897319
• The square root of 18405426039 is 135666.5988333163
• The cube root of 18405426039 is 2640.2717255035

Scales and comparisons

• 18,405,426,039 seconds is equal to 585 years, 12 weeks, 1 day, 18 hours, 20 minutes, 39 seconds.
• To count from 1 to 18,405,426,039 would take you about one thousand, one hundred seventy 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 18405426039 cubic inches would be around 220 feet tall.

Recreational maths with 18405426039

• 18405426039 backwards is 93062450481
• The number of decimal digits it has is: 11
• The sum of 18405426039's digits is 42
• More coming soon!