18487420090

Names of 18487420090

• Cardinal: 18487420090 can be written as Eighteen billion, four hundred eighty-seven million, four hundred twenty thousand and ninety.

Scientific notation

• Scientific notation: 1.848742009 × 10¹⁰

Factors of 18487420090

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 130

Divisors of 18487420090

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 5 10 19 31 38 62 73 95 146 155 190 310 361 365 589 722 730 961 1178 1387 1805 1922 2263 2774 2945 3610 4526 4805 5329 5890 6935 9610 10658 11191 11315 13870 18259 22382 22630 26353 26645 36518 42997 52706 53290 55955 70153 85994 91295 101251 111910 131765 140306 165199 182590 202502 214985 263530 330398 346921 350765 429970 506255 693842 701530 816943 825995 1012510 1332907 1633886 1651990 1734605 1923769 2665814 3138781 3469210 3847538 4084715 5121169 6277562 6664535 8169430 9618845 10242338 13329070 15693905 19237690 25325233 25605845 31387810 50650466 51211690 59636839 97302211 119273678 126626165 194604422 253252330 298184195 486511055 596368390 973022110 1848742009 3697484018 9243710045 18487420090
• Sum of all divisors σ(n): 36794397582
• Sum of proper divisors (its aliquot sum) s(n): 18306977492
• 18487420090 is a deficient number, because the sum of its proper divisors (18306977492) is less than itself. Its deficiency is 180442598

Bases of 18487420090

• Binary: 10001001101111011111010010010111010₂
• Hexadecimal: 0x44DEFA4BA
• Base-36: 8HQXKMY

Squares and roots of 18487420090

• 18487420090 squared (18487420090²) is 341784701584135608100
• 18487420090 cubed (18487420090³) is 6318717358521203466472306729000
• The square root of 18487420090 is 135968.4525542599
• The cube root of 18487420090 is 2644.1866198231

Scales and comparisons

• 18,487,420,090 seconds is equal to 587 years, 43 weeks, 5 days, 18 hours, 28 minutes, 10 seconds.
• To count from 1 to 18,487,420,090 would take you about one thousand, one hundred seventy-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 18487420090 cubic inches would be around 220.3 feet tall.

Recreational maths with 18487420090

• 18487420090 backwards is 09002478481
• The number of decimal digits it has is: 11
• The sum of 18487420090's digits is 43
• More coming soon!