18944428090

Names of 18944428090

• Cardinal: 18944428090 can be written as Eighteen billion, nine hundred forty-four million, four hundred twenty-eight thousand and ninety.

Scientific notation

• Scientific notation: 1.894442809 × 10¹⁰

Factors of 18944428090

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 12103

Divisors of 18944428090

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 7 10 14 35 37 70 74 185 259 370 518 641 1282 1295 2590 3205 4487 6410 8974 11411 22435 22822 23717 44870 47434 57055 79877 114110 118585 159754 166019 237170 332038 399385 422207 798770 830095 844414 1660190 2111035 2955449 4222070 5910898 7314451 14628902 14777245 29554490 36572255 51201157 73144510 102402314 256005785 270634687 512011570 541269374 1353173435 1894442809 2706346870 3788885618 9472214045 18944428090
• Sum of all divisors σ(n): 40090629888
• Sum of proper divisors (its aliquot sum) s(n): 21146201798
• 18944428090 is an abundant number, because the sum of its proper divisors (21146201798) is greater than itself. Its abundance is 2201773708

Bases of 18944428090

• Binary: 10001101001001011010000100000111010₂
• Hexadecimal: 0x4692D083A
• Base-36: 8PB0U9M

Squares and roots of 18944428090

• 18944428090 squared (18944428090²) is 358891355657181048100
• 18944428090 cubed (18944428090³) is 6798991479370081057841281129000
• The square root of 18944428090 is 137638.7594030111
• The cube root of 18944428090 is 2665.7975612733

Scales and comparisons

• 18,944,428,090 seconds is equal to 602 years, 19 weeks, 3 days, 5 hours, 8 minutes, 10 seconds.
• To count from 1 to 18,944,428,090 would take you about one thousand, two hundred four 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 18944428090 cubic inches would be around 222.1 feet tall.

Recreational maths with 18944428090

• 18944428090 backwards is 09082444981
• The number of decimal digits it has is: 11
• The sum of 18944428090's digits is 49
• More coming soon!