18365798972

Names of 18365798972

• Cardinal: 18365798972 can be written as Eighteen billion, three hundred sixty-five million, seven hundred ninety-eight thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 1.8365798972 × 10¹⁰

Factors of 18365798972

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 141

Divisors of 18365798972

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 4 17 34 43 68 79 86 158 172 316 731 1343 1462 1849 2686 2924 3397 3698 5372 6794 7396 13588 31433 57749 62866 79507 115498 125732 146071 159014 230996 292142 318028 584284 1351619 2483207 2703238 3418801 4966414 5406476 6281053 6837602 9932828 12562106 13675204 25124212 58119617 106777901 116239234 213555802 232478468 270085279 427111604 540170558 1080341116 4591449743 9182899486 18365798972
• Sum of all divisors σ(n): 35282026080
• Sum of proper divisors (its aliquot sum) s(n): 16916227108
• 18365798972 is a deficient number, because the sum of its proper divisors (16916227108) is less than itself. Its deficiency is 1449571864

Bases of 18365798972

• Binary: 10001000110101011111101101000111100₂
• Hexadecimal: 0x446AFDA3C
• Base-36: 8FQIT6K

Squares and roots of 18365798972

• 18365798972 squared (18365798972²) is 337302571879916256784
• 18365798972 cubed (18365798972³) is 6194831227885122096289675226048
• The square root of 18365798972 is 135520.4743645771
• The cube root of 18365798972 is 2638.3755201601

Scales and comparisons

• 18,365,798,972 seconds is equal to 583 years, 50 weeks, 5 days, 2 hours, 49 minutes, 32 seconds.
• To count from 1 to 18,365,798,972 would take you about one thousand, one hundred sixty-seven 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 18365798972 cubic inches would be around 219.9 feet tall.

Recreational maths with 18365798972

• 18365798972 backwards is 27989756381
• The number of decimal digits it has is: 11
• The sum of 18365798972's digits is 65
• More coming soon!