18321884997

Names of 18321884997

• Cardinal: 18321884997 can be written as Eighteen billion, three hundred twenty-one million, eight hundred eighty-four thousand, nine hundred ninety-seven.

Scientific notation

• Scientific notation: 1.8321884997 × 10¹⁰

Factors of 18321884997

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6078

Divisors of 18321884997

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 13 17 37 39 51 111 127 221 381 481 629 663 1443 1651 1887 2159 4699 4953 5881 6477 8177 14097 17643 24531 28067 61087 76453 79883 84201 99977 183261 217597 229359 239649 299931 652791 746887 1038479 1299701 2240661 2828761 3115437 3699149 3899103 8486283 9709531 11097447 12697079 27634819 29128593 38091237 48088937 82904457 144266811 165062027 359252647 469791923 495186081 1077757941 1409375769 6107294999 18321884997
• Sum of all divisors σ(n): 28838928384
• Sum of proper divisors (its aliquot sum) s(n): 10517043387
• 18321884997 is a deficient number, because the sum of its proper divisors (10517043387) is less than itself. Its deficiency is 7804841610

Bases of 18321884997

• Binary: 10001000100000100011100011101000101₂
• Hexadecimal: 0x44411C745
• Base-36: 8F0DKXX

Squares and roots of 18321884997

• 18321884997 squared (18321884997²) is 335691469843293690009
• 18321884997 cubed (18321884997³) is 6150500504942720600040665894973
• The square root of 18321884997 is 135358.3576917215
• The cube root of 18321884997 is 2636.2709919885

Scales and comparisons

• 18,321,884,997 seconds is equal to 582 years, 30 weeks, 20 hours, 29 minutes, 57 seconds.
• To count from 1 to 18,321,884,997 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 18321884997 cubic inches would be around 219.7 feet tall.

Recreational maths with 18321884997

• 18321884997 backwards is 79948812381
• The number of decimal digits it has is: 11
• The sum of 18321884997's digits is 60
• More coming soon!