18007747488

Names of 18007747488

• Cardinal: 18007747488 can be written as Eighteen billion, seven million, seven hundred forty-seven thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 1.8007747488 × 10¹⁰

Factors of 18007747488

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3678075

Divisors of 18007747488

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 68 72 96 102 136 144 153 204 272 288 306 408 544 612 816 1224 1632 2448 4896 3678053 7356106 11034159 14712212 22068318 29424424 33102477 44136636 58848848 62526901 66204954 88273272 117697696 125053802 132409908 176546544 187580703 250107604 264819816 353093088 375161406 500215208 529639632 562742109 750322812 1000430416 1059279264 1125484218 1500645624 2000860832 2250968436 3001291248 4501936872 6002582496 9003873744 18007747488
• Sum of all divisors σ(n): 54221872068
• Sum of proper divisors (its aliquot sum) s(n): 36214124580
• 18007747488 is an abundant number, because the sum of its proper divisors (36214124580) is greater than itself. Its abundance is 18206377092

Bases of 18007747488

• Binary: 10000110001010110000110101110100000₂
• Hexadecimal: 0x431586BA0
• Base-36: 89TCIW0

Squares and roots of 18007747488

• 18007747488 squared (18007747488²) is 324278969591570310144
• 18007747488 cubed (18007747488³) is 5839533800073828638470996918272
• The square root of 18007747488 is 134192.9487268239
• The cube root of 18007747488 is 2621.1173432851

Scales and comparisons

• 18,007,747,488 seconds is equal to 572 years, 30 weeks, 5 days, 4 minutes, 48 seconds.
• To count from 1 to 18,007,747,488 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 18007747488 cubic inches would be around 218.4 feet tall.

Recreational maths with 18007747488

• 18007747488 backwards is 88474770081
• The number of decimal digits it has is: 11
• The sum of 18007747488's digits is 54
• More coming soon!