138412872020

Names of 138412872020

• Cardinal: 138412872020 can be written as One hundred thirty-eight billion, four hundred twelve million, eight hundred seventy-two thousand and twenty.

Scientific notation

• Scientific notation: 1.3841287202 × 10¹¹

Factors of 138412872020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1883

Divisors of 138412872020

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 10 20 73 146 193 292 365 386 409 730 772 818 965 1201 1460 1636 1930 2045 2402 3860 4090 4804 6005 8180 12010 14089 24020 28178 29857 56356 59714 70445 78937 87673 119428 140890 149285 157874 175346 231793 281780 298570 315748 350692 394685 438365 463586 491209 597140 789370 876730 927172 982418 1158965 1578740 1753460 1964836 2317930 2456045 4635860 4912090 5762401 9824180 11524802 16920889 23049604 28812005 33841778 35858257 57624010 67683556 71716514 84604445 94803337 115248020 143433028 169208890 179291285 189606674 338417780 358582570 379213348 474016685 717165140 948033370 1896066740 6920643601 13841287202 27682574404 34603218005 69206436010 138412872020
• Sum of all divisors σ(n): 297146804640
• Sum of proper divisors (its aliquot sum) s(n): 158733932620
• 138412872020 is an abundant number, because the sum of its proper divisors (158733932620) is greater than itself. Its abundance is 20321060600

Bases of 138412872020

• Binary: 10000000111010000011001101000101010100₂
• Hexadecimal: 0x203A0CD154
• Base-36: 1RL3G7KK

Squares and roots of 138412872020

• 138412872020 squared (138412872020²) is 19158123140824898880400
• 138412872020 cubed (138412872020³) is 2651730846434397165962246486408000
• The square root of 138412872020 is 372038.8044545891
• The cube root of 138412872020 is 5172.7976908911

Scales and comparisons

• 138,412,872,020 seconds is equal to 4,401 years, 5 weeks, 1 day, 20 hours, 20 seconds.
• To count from 1 to 138,412,872,020 would take you about eight thousand, eight hundred two 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 138412872020 cubic inches would be around 431.1 feet tall.

Recreational maths with 138412872020

• 138412872020 backwards is 020278214831
• The number of decimal digits it has is: 12
• The sum of 138412872020's digits is 38
• More coming soon!