18221504445

Names of 18221504445

• Cardinal: 18221504445 can be written as Eighteen billion, two hundred twenty-one million, five hundred four thousand, four hundred forty-five.

Scientific notation

• Scientific notation: 1.8221504445 × 10¹⁰

Factors of 18221504445

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 176

Divisors of 18221504445

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 5 9 15 27 45 79 81 89 135 237 243 267 395 405 445 711 729 801 1185 1215 1335 2133 2187 2403 3555 3645 4005 6241 6399 6561 7031 7209 10665 10935 12015 18723 19197 21093 21627 31205 31995 32805 35155 36045 56169 57591 63279 64881 93615 95985 105465 108135 168507 172773 189837 194643 280845 287955 316395 324405 505521 518319 555449 569511 583929 842535 863865 949185 973215 1516563 1666347 1708533 2527605 2591595 2777245 2847555 2919645 4549689 4999041 5125599 7582815 8331735 8542665 13649067 14997123 15376797 22748445 24995205 25627995 40947201 44991369 46130391 68245335 74985615 76883985 134974107 204736005 224956845 230651955 404922321 674870535 1214766963 2024611605 3644300889 6073834815 18221504445
• Sum of all divisors σ(n): 33590678940
• Sum of proper divisors (its aliquot sum) s(n): 15369174495
• 18221504445 is a deficient number, because the sum of its proper divisors (15369174495) is less than itself. Its deficiency is 2852329950

Bases of 18221504445

• Binary: 10000111110000101100001011110111101₂
• Hexadecimal: 0x43E1617BD
• Base-36: 8DCM2T9

Squares and roots of 18221504445

• 18221504445 squared (18221504445²) is 332023224239154758025
• 18221504445 cubed (18221504445³) is 6049962656316990166395436921125
• The square root of 18221504445 is 134987.0528791557
• The cube root of 18221504445 is 2631.4477056531

Scales and comparisons

• 18,221,504,445 seconds is equal to 579 years, 20 weeks, 1 day, 1 hour, 45 seconds.
• To count from 1 to 18,221,504,445 would take you about one thousand, one hundred fifty-eight 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 18221504445 cubic inches would be around 219.3 feet tall.

Recreational maths with 18221504445

• 18221504445 backwards is 54440512281
• The number of decimal digits it has is: 11
• The sum of 18221504445's digits is 36
• More coming soon!