155442357938149966369

Names of 155442357938149966369

• Cardinal: 155442357938149966369 can be written as One hundred fifty-five quintillion, four hundred forty-two quadrillion, three hundred fifty-seven trillion, nine hundred thirty-eight billion, one hundred forty-nine million, nine hundred sixty-six thousand, three hundred sixty-nine.

Scientific notation

• Scientific notation: 1.55442357938149966369 × 10²⁰

Factors of 155442357938149966369

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 6036

Divisors of 155442357938149966369

• Number of divisors d(n): 21
• Complete list of divisors:
  1 7 49 343 2401 6029 16807 42203 117649 295421 2067947 14475629 36348841 101329403 254441887 709305821 1781093209 12467652463 87273567241 610914970687 4276404794809
• Sum of all divisors σ(n): 155442358651705700407
• Sum of proper divisors (its aliquot sum) s(n): 713555734038
• 155442357938149966369 is a deficient number, because the sum of its proper divisors (713555734038) is less than itself. Its deficiency is 155442357224594232331

Bases of 155442357938149966369

• Binary: 10000110110100110010001100001111100111010000100011001100001000100001₂
• Hexadecimal: 0x86D3230F9D08CC221
• Base-36: WSZ7P5909POO1

Squares and roots of 155442357938149966369

• 155442357938149966369 squared (155442357938149966369²) is 24162326641371933863861542864155831044161
• 155442357938149966369 cubed (155442357938149966369³) is 3755849026406633039446627822863111855278401757131888303821409
• 155442357938149966369 is a perfect square number. Its square root is 12467652463
• The cube root of 155442357938149966369 is 5376790.6253348135

Scales and comparisons

• 155,442,357,938,149,966,369 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 155,442,357,938,149,966,369 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 155442357938149966369 cubic inches would be around 448065.9 feet tall.

Recreational maths with 155442357938149966369

• 155442357938149966369 backwards is 963669941839753244551
• The number of decimal digits it has is: 21
• The sum of 155442357938149966369's digits is 109
• More coming soon!