18109669920

Names of 18109669920

• Cardinal: 18109669920 can be written as Eighteen billion, one hundred nine million, six hundred sixty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.810966992 × 10¹⁰

Factors of 18109669920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 42514

Divisors of 18109669920

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 907 1814 2721 3628 4535 5442 7256 9070 10884 13605 14512 18140 21768 27210 29024 36280 41597 43536 54420 72560 83194 87072 108840 124791 145120 166388 207985 217680 249582 332776 415970 435360 499164 623955 665552 831940 998328 1247910 1331104 1663880 1996656 2495820 3327760 3993312 4991640 6655520 9983280 19966560 37728479 75456958 113185437 150913916 188642395 226370874 301827832 377284790 452741748 565927185 603655664 754569580 905483496 1131854370 1207311328 1509139160 1810966992 2263708740 3018278320 3621933984 4527417480 6036556640 9054834960 18109669920
• Sum of all divisors σ(n): 57109727808
• Sum of proper divisors (its aliquot sum) s(n): 39000057888
• 18109669920 is an abundant number, because the sum of its proper divisors (39000057888) is greater than itself. Its abundance is 20890387968

Bases of 18109669920

• Binary: 10000110111011010111010001000100000₂
• Hexadecimal: 0x4376BA220
• Base-36: 8BI12QO

Squares and roots of 18109669920

• 18109669920 squared (18109669920²) is 327960144611352806400
• 18109669920 cubed (18109669920³) is 5939249965827066008569663488000
• The square root of 18109669920 is 134572.1736467089
• The cube root of 18109669920 is 2626.0531487585

Scales and comparisons

• 18,109,669,920 seconds is equal to 575 years, 43 weeks, 1 day, 15 hours, 52 minutes.
• To count from 1 to 18,109,669,920 would take you about one thousand, one hundred fifty-one 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 18109669920 cubic inches would be around 218.8 feet tall.

Recreational maths with 18109669920

• 18109669920 backwards is 02996690181
• The number of decimal digits it has is: 11
• The sum of 18109669920's digits is 51
• More coming soon!