18287472330

Names of 18287472330

• Cardinal: 18287472330 can be written as Eighteen billion, two hundred eighty-seven million, four hundred seventy-two thousand, three hundred thirty.

Scientific notation

• Scientific notation: 1.828747233 × 10¹⁰

Factors of 18287472330

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 16470

Divisors of 18287472330

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 8191 8269 16382 16538 24573 24807 40955 41345 49146 49614 73719 74421 81910 82690 122865 124035 147438 148842 221157 223263 245730 248070 368595 372105 442314 446526 737190 744210 1105785 1116315 2211570 2232630 67731379 135462758 203194137 338656895 406388274 609582411 677313790 1015970685 1219164822 1828747233 2031941370 3047912055 3657494466 6095824110 9143736165 18287472330
• Sum of all divisors σ(n): 48778444800
• Sum of proper divisors (its aliquot sum) s(n): 30490972470
• 18287472330 is an abundant number, because the sum of its proper divisors (30490972470) is greater than itself. Its abundance is 12203500140

Bases of 18287472330

• Binary: 10001000010000001001010111011001010₂
• Hexadecimal: 0x44204AECA
• Base-36: 8EFVZYI

Squares and roots of 18287472330

• 18287472330 squared (18287472330²) is 334431644220515628900
• 18287472330 cubed (18287472330³) is 6115909439959083981841298337000
• The square root of 18287472330 is 135231.1810567371
• The cube root of 18287472330 is 2634.6194520691

Scales and comparisons

• 18,287,472,330 seconds is equal to 581 years, 25 weeks, 1 day, 13 hours, 25 minutes, 30 seconds.
• To count from 1 to 18,287,472,330 would take you about one thousand, one hundred sixty-two 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 18287472330 cubic inches would be around 219.6 feet tall.

Recreational maths with 18287472330

• 18287472330 backwards is 03327478281
• 18287472330 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18287472330's digits is 45
• More coming soon!