18385994030988

Names of 18385994030988

• Cardinal: 18385994030988 can be written as Eighteen trillion, three hundred eighty-five billion, nine hundred ninety-four million, thirty thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 1.8385994030988 × 10¹³

Factors of 18385994030988

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 42717

Divisors of 18385994030988

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 3 4 6 12 29 58 87 116 174 348 841 1682 2523 3364 5046 10092 42683 85366 128049 170732 256098 512196 1237807 2475614 3713421 4951228 7426842 14853684 35896403 71792806 107689209 143585612 215378418 430756836 1821838489 3643676978 5465515467 7287353956 10931030934 21862061868 52833316181 105666632362 158499948543 211333264724 316999897086 633999794172 1532166169249 3064332338498 4596498507747 6128664676996 9192997015494 18385994030988
• Sum of all divisors σ(n): 44432038047124
• Sum of proper divisors (its aliquot sum) s(n): 26046044016136
• 18385994030988 is an abundant number, because the sum of its proper divisors (26046044016136) is greater than itself. Its abundance is 7660049985148

Bases of 18385994030988

• Binary: 100001011100011010010101001001001111110001100₂
• Hexadecimal: 0x10B8D2A49F8C
• Base-36: 6IMEQ4TCC

Squares and roots of 18385994030988

• 18385994030988 squared (18385994030988²) is 338044776507526365104256144
• 18385994030988 cubed (18385994030988³) is 6215289243074052238063889839897825390272
• The square root of 18385994030988 is 4287889.2279288185
• The cube root of 18385994030988 is 26393.4221975857

Scales and comparisons

• 18,385,994,030,988 seconds is equal to 584,617 years, 38 weeks, 2 days, 20 hours, 9 minutes, 48 seconds.
• To count from 1 to 18,385,994,030,988 would take you about one million, four hundred sixty-one thousand, five hundred forty-four 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 18385994030988 cubic inches would be around 2199.5 feet tall.

Recreational maths with 18385994030988

• 18385994030988 backwards is 88903049958381
• The number of decimal digits it has is: 14
• The sum of 18385994030988's digits is 75
• More coming soon!