138918445146

Names of 138918445146

• Cardinal: 138918445146 can be written as One hundred thirty-eight billion, nine hundred eighteen million, four hundred forty-five thousand, one hundred forty-six.

Scientific notation

• Scientific notation: 1.38918445146 × 10¹¹

Factors of 138918445146

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 491090

Divisors of 138918445146

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 31 39 54 62 78 93 117 169 186 234 279 338 351 403 507 558 702 806 837 1014 1209 1521 1674 2418 3042 3627 4563 5239 7254 9126 10478 10881 15717 21762 31434 47151 94302 141453 282906 491041 982082 1473123 2946246 4419369 6383533 8838738 12767066 13258107 15222271 19150599 26516214 30444542 38301198 45666813 57451797 82985929 91333626 114903594 137000439 165971858 172355391 197889523 248957787 274000878 344710782 395779046 411001317 497915574 593668569 746873361 822002634 1187337138 1493746722 1781005707 2240620083 2572563799 3562011414 4481240166 5145127598 5343017121 7717691397 10686034242 15435382794 23153074191 46306148382 69459222573 138918445146
• Sum of all divisors σ(n): 345065034240
• Sum of proper divisors (its aliquot sum) s(n): 206146589094
• 138918445146 is an abundant number, because the sum of its proper divisors (206146589094) is greater than itself. Its abundance is 67228143948

Bases of 138918445146

• Binary: 10000001011000001011110100000001011010₂
• Hexadecimal: 0x20582F405A
• Base-36: 1RTGGEAI

Squares and roots of 138918445146

• 138918445146 squared (138918445146²) is 19298334401782210961316
• 138918445146 cubed (138918445146³) is 2680894609003146798068176673972136
• The square root of 138918445146 is 372717.6480205895
• The cube root of 138918445146 is 5179.0881698529

Scales and comparisons

• 138,918,445,146 seconds is equal to 4,417 years, 9 weeks, 1 day, 8 hours, 59 minutes, 6 seconds.
• To count from 1 to 138,918,445,146 would take you about eight thousand, eight hundred thirty-four 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 138918445146 cubic inches would be around 431.6 feet tall.

Recreational maths with 138918445146

• 138918445146 backwards is 641544819831
• 138918445146 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138918445146's digits is 54
• More coming soon!