18321670664

Names of 18321670664

• Cardinal: 18321670664 can be written as Eighteen billion, three hundred twenty-one million, six hundred seventy thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 1.8321670664 × 10¹⁰

Factors of 18321670664

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 9890

Divisors of 18321670664

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 11 19 22 38 44 76 88 152 209 418 836 1277 1672 2554 5108 8581 10216 14047 17162 24263 28094 34324 48526 56188 68648 94391 97052 112376 163039 188782 194104 266893 326078 377564 533786 652156 755128 1067572 1304312 1793429 2135144 3586858 7173716 10957937 14347432 21915874 43831748 87663496 120537307 208200803 241074614 416401606 482149228 832803212 964298456 1665606424 2290208833 4580417666 9160835332 18321670664
• Sum of all divisors σ(n): 39484065600
• Sum of proper divisors (its aliquot sum) s(n): 21162394936
• 18321670664 is an abundant number, because the sum of its proper divisors (21162394936) is greater than itself. Its abundance is 2840724272

Bases of 18321670664

• Binary: 10001000100000011101000001000001000₂
• Hexadecimal: 0x4440E8208
• Base-36: 8F08ZK8

Squares and roots of 18321670664

• 18321670664 squared (18321670664²) is 335683615920078200896
• 18321670664 cubed (18321670664³) is 6150284658188340141942141714944
• The square root of 18321670664 is 135357.5659651133
• The cube root of 18321670664 is 2636.2607120769

Scales and comparisons

• 18,321,670,664 seconds is equal to 582 years, 29 weeks, 5 days, 8 hours, 57 minutes, 44 seconds.
• To count from 1 to 18,321,670,664 would take you about one thousand, one hundred sixty-five 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 18321670664 cubic inches would be around 219.7 feet tall.

Recreational maths with 18321670664

• 18321670664 backwards is 46607612381
• 18321670664 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18321670664's digits is 44
• More coming soon!