18680513400

Names of 18680513400

• Cardinal: 18680513400 can be written as Eighteen billion, six hundred eighty million, five hundred thirteen thousand, four hundred.

Scientific notation

• Scientific notation: 1.86805134 × 10¹⁰

Factors of 18680513400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 10378073

Divisors of 18680513400

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 45 50 60 72 75 90 100 120 150 180 200 225 300 360 450 600 900 1800 10378063 20756126 31134189 41512252 51890315 62268378 83024504 93402567 103780630 124536756 155670945 186805134 207561260 249073512 259451575 311341890 373610268 415122520 467012835 518903150 622683780 747220536 778354725 934025670 1037806300 1245367560 1556709450 1868051340 2075612600 2335064175 3113418900 3736102680 4670128350 6226837800 9340256700 18680513400
• Sum of all divisors σ(n): 62735396880
• Sum of proper divisors (its aliquot sum) s(n): 44054883480
• 18680513400 is an abundant number, because the sum of its proper divisors (44054883480) is greater than itself. Its abundance is 25374370080

Bases of 18680513400

• Binary: 10001011001011100100000001101111000₂
• Hexadecimal: 0x459720378
• Base-36: 8KXW8E0

Squares and roots of 18680513400

• 18680513400 squared (18680513400²) is 348961580887579560000
• 18680513400 cubed (18680513400³) is 6518781487855613864146104000000
• The square root of 18680513400 is 136676.6746742105
• The cube root of 18680513400 is 2653.3605591481

Scales and comparisons

• 18,680,513,400 seconds is equal to 593 years, 51 weeks, 15 hours, 30 minutes.
• To count from 1 to 18,680,513,400 would take you about one thousand, one hundred eighty-seven 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 18680513400 cubic inches would be around 221.1 feet tall.

Recreational maths with 18680513400

• 18680513400 backwards is 00431508681
• 18680513400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18680513400's digits is 36
• More coming soon!