138937956549820

Names of 138937956549820

• Cardinal: 138937956549820 can be written as One hundred thirty-eight trillion, nine hundred thirty-seven billion, nine hundred fifty-six million, five hundred forty-nine thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 1.3893795654982 × 10¹⁴

Factors of 138937956549820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 222350900

Divisors of 138937956549820

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 10 20 157 199 314 398 628 785 796 995 1570 1990 3140 3980 31243 62486 124972 156215 312430 624860 222350537 444701074 889402148 1111752685 2223505370 4447010740 34909034309 44247756863 69818068618 88495513726 139636137236 174545171545 176991027452 221238784315 349090343090 442477568630 698180686180 884955137260 6946897827491 13893795654982 27787591309964 34734489137455 69468978274910 138937956549820
• Sum of all divisors σ(n): 295103634033600
• Sum of proper divisors (its aliquot sum) s(n): 156165677483780
• 138937956549820 is an abundant number, because the sum of its proper divisors (156165677483780) is greater than itself. Its abundance is 17227720933960

Bases of 138937956549820

• Binary: 11111100101110100000011100010111100010010111100₂
• Hexadecimal: 0x7E5D038BC4BC
• Base-36: 1D8Z7S237G

Squares and roots of 138937956549820

• 138937956549820 squared (138937956549820²) is 19303755770239670238142032400
• 138937956549820 cubed (138937956549820³) is 2682024380453896410594662709677026654168000
• The square root of 138937956549820 is 11787194.6004899743
• The cube root of 138937956549820 is 51793.3062997629

Scales and comparisons

• 138,937,956,549,820 seconds is equal to 4,417,797 years, 13 weeks, 1 day, 19 hours, 23 minutes, 40 seconds.
• To count from 1 to 138,937,956,549,820 would take you about eleven million, forty-four thousand, four hundred ninety-three 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 138937956549820 cubic inches would be around 4316.1 feet tall.

Recreational maths with 138937956549820

• 138937956549820 backwards is 028945659739831
• The number of decimal digits it has is: 15
• The sum of 138937956549820's digits is 79
• More coming soon!