18007321572

Names of 18007321572

• Cardinal: 18007321572 can be written as Eighteen billion, seven million, three hundred twenty-one thousand, five hundred seventy-two.

Scientific notation

• Scientific notation: 1.8007321572 × 10¹⁰

Factors of 18007321572

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 797

Divisors of 18007321572

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 81 108 162 173 243 324 346 486 519 619 692 972 1038 1238 1557 1857 2076 2476 3114 3714 4671 5571 6228 7428 9342 11142 14013 16713 18684 22284 28026 29929 33426 42039 50139 56052 59858 66852 84078 89787 100278 107087 119716 150417 168156 179574 200556 214174 269361 300834 321261 359148 428348 538722 601668 642522 808083 963783 1077444 1285044 1616166 1927566 2424249 2891349 3232332 3855132 4848498 5782698 7272747 8674047 9696996 11565396 14545494 17348094 18526051 26022141 29090988 34696188 37052102 52044282 55578153 74104204 104088564 111156306 166734459 222312612 333468918 500203377 666937836 1000406754 1500610131 2000813508 3001220262 4501830393 6002440524 9003660786 18007321572
• Sum of all divisors σ(n): 47555515280
• Sum of proper divisors (its aliquot sum) s(n): 29548193708
• 18007321572 is an abundant number, because the sum of its proper divisors (29548193708) is greater than itself. Its abundance is 11540872136

Bases of 18007321572

• Binary: 10000110001010100011110101111100100₂
• Hexadecimal: 0x43151EBE4
• Base-36: 89T3E90

Squares and roots of 18007321572

• 18007321572 squared (18007321572²) is 324263630197416551184
• 18007321572 cubed (18007321572³) is 5839119463068969680805485341248
• The square root of 18007321572 is 134191.3617637141
• The cube root of 18007321572 is 2621.0966783903

Scales and comparisons

• 18,007,321,572 seconds is equal to 572 years, 30 weeks, 1 hour, 46 minutes, 12 seconds.
• To count from 1 to 18,007,321,572 would take you about one thousand, one hundred forty-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 18007321572 cubic inches would be around 218.4 feet tall.

Recreational maths with 18007321572

• 18007321572 backwards is 27512370081
• 18007321572 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18007321572's digits is 36
• More coming soon!