18237294920

Names of 18237294920

• Cardinal: 18237294920 can be written as Eighteen billion, two hundred thirty-seven million, two hundred ninety-four thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.823729492 × 10¹⁰

Factors of 18237294920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 18542

Divisors of 18237294920

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 2141 4282 8564 10705 16381 17128 21410 27833 32762 42820 55666 65524 81905 85640 111332 131048 139165 163810 212953 222664 278330 327620 425906 556660 655240 851812 1064765 1113320 1703624 2129530 4259060 8518120 35071721 70143442 140286884 175358605 280573768 350717210 455932373 701434420 911864746 1402868840 1823729492 2279661865 3647458984 4559323730 9118647460 18237294920
• Sum of all divisors σ(n): 44213707440
• Sum of proper divisors (its aliquot sum) s(n): 25976412520
• 18237294920 is an abundant number, because the sum of its proper divisors (25976412520) is greater than itself. Its abundance is 7739117600

Bases of 18237294920

• Binary: 10000111111000001110000100101001000₂
• Hexadecimal: 0x43F070948
• Base-36: 8DM0ITK

Squares and roots of 18237294920

• 18237294920 squared (18237294920²) is 332598925999057806400
• 18237294920 cubed (18237294920³) is 6065704703520072857445063488000
• The square root of 18237294920 is 135045.5290633495
• The cube root of 18237294920 is 2632.2076102005

Scales and comparisons

• 18,237,294,920 seconds is equal to 579 years, 46 weeks, 1 day, 19 hours, 15 minutes, 20 seconds.
• To count from 1 to 18,237,294,920 would take you about one thousand, one hundred fifty-nine 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 18237294920 cubic inches would be around 219.4 feet tall.

Recreational maths with 18237294920

• 18237294920 backwards is 02949273281
• The number of decimal digits it has is: 11
• The sum of 18237294920's digits is 47
• More coming soon!