145313631021

Names of 145313631021

• Cardinal: 145313631021 can be written as One hundred forty-five billion, three hundred thirteen million, six hundred thirty-one thousand and twenty-one.

Scientific notation

• Scientific notation: 1.45313631021 × 10¹¹

Factors of 145313631021

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1682

Divisors of 145313631021

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 13 37 39 111 307 331 481 921 991 993 1443 2973 3991 4303 11359 11973 12247 12883 12909 34077 36667 36741 38649 101617 110001 147667 159211 304237 304851 328021 443001 476671 477633 912711 984063 1321021 1430013 3759829 3955081 3963063 4264273 11256769 11279487 11865243 12136777 12792819 33770307 36410331 48877777 100702447 146337997 146633331 157778101 302107341 439013991 473334303 1309131811 3725990539 3927395433 11177971617 48437877007 145313631021
• Sum of all divisors σ(n): 215859961856
• Sum of proper divisors (its aliquot sum) s(n): 70546330835
• 145313631021 is a deficient number, because the sum of its proper divisors (70546330835) is less than itself. Its deficiency is 74767300186

Bases of 145313631021

• Binary: 10000111010101010111100000101100101101₂
• Hexadecimal: 0x21D55E0B2D
• Base-36: 1UR7ZFAL

Squares and roots of 145313631021

• 145313631021 squared (145313631021²) is 21116051360507333502441
• 145313631021 cubed (145313631021³) is 3068450096021247711938303076822261
• The square root of 145313631021 is 381200.2505521213
• The cube root of 145313631021 is 5257.3729336097

Scales and comparisons

• 145,313,631,021 seconds is equal to 4,620 years, 27 weeks, 1 day, 17 hours, 30 minutes, 21 seconds.
• To count from 1 to 145,313,631,021 would take you about nine thousand, two hundred forty-one 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 145313631021 cubic inches would be around 438.1 feet tall.

Recreational maths with 145313631021

• 145313631021 backwards is 120136313541
• The number of decimal digits it has is: 12
• The sum of 145313631021's digits is 30
• More coming soon!