138902812980

Names of 138902812980

• Cardinal: 138902812980 can be written as One hundred thirty-eight billion, nine hundred two million, eight hundred twelve thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 1.3890281298 × 10¹¹

Factors of 138902812980

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 31713054

Divisors of 138902812980

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 30 60 73 146 219 292 365 438 730 876 1095 1460 2190 4380 31712971 63425942 95138913 126851884 158564855 190277826 317129710 380555652 475694565 634259420 951389130 1902778260 2315046883 4630093766 6945140649 9260187532 11575234415 13890281298 23150468830 27780562596 34725703245 46300937660 69451406490 138902812980
• Sum of all divisors σ(n): 394255667904
• Sum of proper divisors (its aliquot sum) s(n): 255352854924
• 138902812980 is an abundant number, because the sum of its proper divisors (255352854924) is greater than itself. Its abundance is 116450041944

Bases of 138902812980

• Binary: 10000001010111010000001011100100110100₂
• Hexadecimal: 0x205740B934
• Base-36: 1RT75CFO

Squares and roots of 138902812980

• 138902812980 squared (138902812980²) is 19293991453756856480400
• 138902812980 cubed (138902812980³) is 2679989686538906954089702235592000
• The square root of 138902812980 is 372696.6769103261
• The cube root of 138902812980 is 5178.8938990275

Scales and comparisons

• 138,902,812,980 seconds is equal to 4,416 years, 35 weeks, 2 days, 10 hours, 43 minutes.
• To count from 1 to 138,902,812,980 would take you about eight thousand, eight hundred thirty-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 138902812980 cubic inches would be around 431.6 feet tall.

Recreational maths with 138902812980

• 138902812980 backwards is 089218209831
• The number of decimal digits it has is: 12
• The sum of 138902812980's digits is 51
• More coming soon!