18489443481

Names of 18489443481

• Cardinal: 18489443481 can be written as Eighteen billion, four hundred eighty-nine million, four hundred forty-three thousand, four hundred eighty-one.

Scientific notation

• Scientific notation: 1.8489443481 × 10¹⁰

Factors of 18489443481

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 232

Divisors of 18489443481

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 23 27 67 69 139 201 207 417 529 603 621 1251 1541 1587 1809 3197 3753 4623 4761 9313 9591 13869 14283 19321 27939 28773 35443 41607 57963 73531 83817 86319 106329 173889 214199 220593 251451 318987 444383 521667 642597 661779 956961 1294507 1333149 1927791 1985337 3883521 3999447 4926577 5783373 10220809 11650563 11998341 14779731 29773661 30662427 34951689 44339193 89320983 91987281 133017579 267962949 275961843 684794203 803888847 2054382609 6163147827 18489443481
• Sum of all divisors σ(n): 29272457760
• Sum of proper divisors (its aliquot sum) s(n): 10783014279
• 18489443481 is a deficient number, because the sum of its proper divisors (10783014279) is less than itself. Its deficiency is 7706429202

Bases of 18489443481

• Binary: 10001001110000011101000010010011001₂
• Hexadecimal: 0x44E0E8499
• Base-36: 8HS4XW9

Squares and roots of 18489443481

• 18489443481 squared (18489443481²) is 341859520237093397361
• 18489443481 cubed (18489443481³) is 6320792277865514090224484053641
• The square root of 18489443481 is 135975.8930141663
• The cube root of 18489443481 is 2644.2830823221

Scales and comparisons

• 18,489,443,481 seconds is equal to 587 years, 47 weeks, 1 day, 4 hours, 31 minutes, 21 seconds.
• To count from 1 to 18,489,443,481 would take you about one thousand, one hundred seventy-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 18489443481 cubic inches would be around 220.4 feet tall.

Recreational maths with 18489443481

• 18489443481 backwards is 18434498481
• The number of decimal digits it has is: 11
• The sum of 18489443481's digits is 54
• More coming soon!