18506798298640

Names of 18506798298640

• Cardinal: 18506798298640 can be written as Eighteen trillion, five hundred six billion, seven hundred ninety-eight million, two hundred ninety-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.850679829864 × 10¹³

Factors of 18506798298640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5524981

Divisors of 18506798298640

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 42193 84386 168772 210965 337544 421930 675088 843860 1687720 3375440 5482781 10965562 21931124 27413905 43862248 54827810 87724496 109655620 219311240 438622480 231334978733 462669957466 925339914932 1156674893665 1850679829864 2313349787330 3701359659728 4626699574660 9253399149320 18506798298640
• Sum of all divisors σ(n): 43029333689688
• Sum of proper divisors (its aliquot sum) s(n): 24522535391048
• 18506798298640 is an abundant number, because the sum of its proper divisors (24522535391048) is greater than itself. Its abundance is 6015737092408

Bases of 18506798298640

• Binary: 100001101010011110011001000110111011000010000₂
• Hexadecimal: 0x10D4F3237610
• Base-36: 6K5WLVITS

Squares and roots of 18506798298640

• 18506798298640 squared (18506798298640²) is 342501583266544398625849600
• 18506798298640 cubed (18506798298640³) is 6338607718478790170120895331204524544000
• The square root of 18506798298640 is 4301952.8470963045
• The cube root of 18506798298640 is 26451.1016147707

Scales and comparisons

• 18,506,798,298,640 seconds is equal to 588,458 years, 48 weeks, 6 days, 9 hours, 10 minutes, 40 seconds.
• To count from 1 to 18,506,798,298,640 would take you about one million, four hundred seventy-one thousand, one hundred forty-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 18506798298640 cubic inches would be around 2204.3 feet tall.

Recreational maths with 18506798298640

• 18506798298640 backwards is 04689289760581
• The number of decimal digits it has is: 14
• The sum of 18506798298640's digits is 73
• More coming soon!