18817089401439

Names of 18817089401439

• Cardinal: 18817089401439 can be written as Eighteen trillion, eight hundred seventeen billion, eighty-nine million, four hundred one thousand, four hundred thirty-nine.

Scientific notation

• Scientific notation: 1.8817089401439 × 10¹³

Factors of 18817089401439

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 28521

Divisors of 18817089401439

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 7 9 21 63 3079 4673 9237 14019 20759 21553 27711 32711 42057 62277 64659 98133 145313 186831 193977 294399 435939 1307817 14388167 43164501 63916961 97006807 100717169 129493503 191750883 291020421 302151507 447418727 575252649 679047649 873061263 906454521 1342256181 2037142947 4026768543 6111428841 298683958753 896051876259 2090787711271 2688155628777 6272363133813 18817089401439
• Sum of all divisors σ(n): 31081367116800
• Sum of proper divisors (its aliquot sum) s(n): 12264277715361
• 18817089401439 is a deficient number, because the sum of its proper divisors (12264277715361) is less than itself. Its deficiency is 6552811686078

Bases of 18817089401439

• Binary: 100010001110100110001111011011111001001011111₂
• Hexadecimal: 0x111D31EDF25F
• Base-36: 6O4G96Q1R

Squares and roots of 18817089401439

• 18817089401439 squared (18817089401439²) is 354082853541747943295270721
• 18817089401439 cubed (18817089401439³) is 6662808710611702907499815044661351967519
• The square root of 18817089401439 is 4337866.9183642553
• The cube root of 18817089401439 is 26598.1123471741

Scales and comparisons

• 18,817,089,401,439 seconds is equal to 598,325 years, 12 weeks, 2 days, 14 hours, 10 minutes, 39 seconds.
• To count from 1 to 18,817,089,401,439 would take you about one million, four hundred ninety-five thousand, eight hundred thirteen 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 18817089401439 cubic inches would be around 2216.5 feet tall.

Recreational maths with 18817089401439

• 18817089401439 backwards is 93410498071881
• 18817089401439 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18817089401439's digits is 63
• More coming soon!