18729170275728

Names of 18729170275728

• Cardinal: 18729170275728 can be written as Eighteen trillion, seven hundred twenty-nine billion, one hundred seventy million, two hundred seventy-five thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8729170275728 × 10¹³

Factors of 18729170275728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1144255318

Divisors of 18729170275728

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 31 33 44 48 62 66 88 93 124 132 176 186 248 264 341 372 496 528 682 744 1023 1364 1488 2046 2728 4092 5456 8184 16368 1144255271 2288510542 3432765813 4577021084 6865531626 9154042168 12586807981 13731063252 18308084336 25173615962 27462126504 35471913401 37760423943 50347231924 54924253008 70943826802 75520847886 100694463848 106415740203 141887653604 151041695772 201388927696 212831480406 283775307208 302083391544 390191047411 425662960812 567550614416 604166783088 780382094822 851325921624 1170573142233 1560764189644 1702651843248 2341146284466 3121528379288 4682292568932 6243056758576 9364585137864 18729170275728
• Sum of all divisors σ(n): 54484859031552
• Sum of proper divisors (its aliquot sum) s(n): 35755688755824
• 18729170275728 is an abundant number, because the sum of its proper divisors (35755688755824) is greater than itself. Its abundance is 17026518480096

Bases of 18729170275728

• Binary: 100010000100010111001100010101000110110010000₂
• Hexadecimal: 0x1108B98A8D90
• Base-36: 6N028EQHC

Squares and roots of 18729170275728

• 18729170275728 squared (18729170275728²) is 350781819217213247545929984
• 18729170275728 cubed (18729170275728³) is 6569852421748823288663579797777462628352
• The square root of 18729170275728 is 4327721.1411697959
• The cube root of 18729170275728 is 26556.6228576811

Scales and comparisons

• 18,729,170,275,728 seconds is equal to 595,529 years, 35 weeks, 3 days, 2 hours, 48 minutes, 48 seconds.
• To count from 1 to 18,729,170,275,728 would take you about one million, four hundred eighty-eight thousand, eight hundred twenty-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 18729170275728 cubic inches would be around 2213.1 feet tall.

Recreational maths with 18729170275728

• 18729170275728 backwards is 82757207192781
• 18729170275728 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18729170275728's digits is 66
• More coming soon!