18123807648402

Names of 18123807648402

• Cardinal: 18123807648402 can be written as Eighteen trillion, one hundred twenty-three billion, eight hundred seven million, six hundred forty-eight thousand, four hundred two.

Scientific notation

• Scientific notation: 1.8123807648402 × 10¹³

Factors of 18123807648402

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 109288978

Divisors of 18123807648402

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 9 18 27 37 54 74 83 111 166 222 249 333 498 666 747 999 1494 1998 2241 3071 4482 6142 9213 18426 27639 55278 82917 165834 109288853 218577706 327866559 655733118 983599677 1967199354 2950799031 4043687561 5901598062 8087375122 9070974799 12131062683 18141949598 24262125366 27212924397 36393188049 54425848794 72786376098 81638773191 109179564147 163277546382 218359128294 244916319573 335626067563 489832639146 671252135126 1006878202689 2013756405378 3020634608067 6041269216134 9061903824201 18123807648402
• Sum of all divisors σ(n): 41862002636160
• Sum of proper divisors (its aliquot sum) s(n): 23738194987758
• 18123807648402 is an abundant number, because the sum of its proper divisors (23738194987758) is greater than itself. Its abundance is 5614387339356

Bases of 18123807648402

• Binary: 100000111101111000111000111011110101010010010₂
• Hexadecimal: 0x107BC71DEA92
• Base-36: 6F9YN4PSI

Squares and roots of 18123807648402

• 18123807648402 squared (18123807648402²) is 328472403676274833253153604
• 18123807648402 cubed (18123807648402³) is 5953170662037059045341292491261731140808
• The square root of 18123807648402 is 4257206.5545850603
• The cube root of 18123807648402 is 26267.3633384401

Scales and comparisons

• 18,123,807,648,402 seconds is equal to 576,281 years, 1 week, 1 day, 5 hours, 26 minutes, 42 seconds.
• To count from 1 to 18,123,807,648,402 would take you about one million, four hundred forty thousand, seven hundred two 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 18123807648402 cubic inches would be around 2188.9 feet tall.

Recreational maths with 18123807648402

• 18123807648402 backwards is 20484670832181
• 18123807648402 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18123807648402's digits is 54
• More coming soon!