18398223488

Names of 18398223488

• Cardinal: 18398223488 can be written as Eighteen billion, three hundred ninety-eight million, two hundred twenty-three thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 1.8398223488 × 10¹⁰

Factors of 18398223488

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 652

Divisors of 18398223488

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 16 19 32 38 64 76 128 152 304 361 608 631 722 1216 1262 1444 2432 2524 2888 5048 5776 10096 11552 11989 20192 23104 23978 40384 46208 47956 80768 95912 191824 227791 383648 398161 455582 767296 796322 911164 1534592 1592644 1822328 3185288 3644656 6370576 7289312 7565059 12741152 14578624 15130118 25482304 29157248 30260236 50964608 60520472 121040944 143736121 242081888 287472242 484163776 574944484 968327552 1149888968 2299777936 4599555872 9199111744 18398223488
• Sum of all divisors σ(n): 38744733915
• Sum of proper divisors (its aliquot sum) s(n): 20346510427
• 18398223488 is an abundant number, because the sum of its proper divisors (20346510427) is greater than itself. Its abundance is 1948286939

Bases of 18398223488

• Binary: 10001001000100111101001110010000000₂
• Hexadecimal: 0x4489E9C80
• Base-36: 8G9TS3K

Squares and roots of 18398223488

• 18398223488 squared (18398223488²) is 338494627514394886144
• 18398223488 cubed (18398223488³) is 6227699806497151052361626550272
• The square root of 18398223488 is 135640.0511943283
• The cube root of 18398223488 is 2639.9272768459

Scales and comparisons

• 18,398,223,488 seconds is equal to 585 years, 2 days, 9 hours, 38 minutes, 8 seconds.
• To count from 1 to 18,398,223,488 would take you about one thousand, one hundred seventy 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 18398223488 cubic inches would be around 220 feet tall.

Recreational maths with 18398223488

• 18398223488 backwards is 88432289381
• The number of decimal digits it has is: 11
• The sum of 18398223488's digits is 56
• More coming soon!