138761371648

Names of 138761371648

• Cardinal: 138761371648 can be written as One hundred thirty-eight billion, seven hundred sixty-one million, three hundred seventy-one thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.38761371648 × 10¹¹

Factors of 138761371648

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 22364

Divisors of 138761371648

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 16 32 64 128 191 256 382 512 764 1024 1528 2048 3056 4096 6112 8192 12224 16384 22171 24448 32768 44342 48896 88684 97792 177368 195584 354736 391168 709472 782336 1418944 1564672 2837888 3129344 4234661 5675776 6258688 8469322 11351552 16938644 22703104 33877288 45406208 67754576 90812416 135509152 181624832 271018304 363249664 542036608 726499328 1084073216 2168146432 4336292864 8672585728 17345171456 34690342912 69380685824 138761371648
• Sum of all divisors σ(n): 278984067840
• Sum of proper divisors (its aliquot sum) s(n): 140222696192
• 138761371648 is an abundant number, because the sum of its proper divisors (140222696192) is greater than itself. Its abundance is 1461324544

Bases of 138761371648

• Binary: 10000001001110110100101000000000000000₂
• Hexadecimal: 0x204ED28000
• Base-36: 1RQUXRLS

Squares and roots of 138761371648

• 138761371648 squared (138761371648²) is 19254718261634378235904
• 138761371648 cubed (138761371648³) is 2671811116680180458285677561249792
• The square root of 138761371648 is 372506.8746318651
• The cube root of 138761371648 is 5177.1354550991

Scales and comparisons

• 138,761,371,648 seconds is equal to 4,412 years, 9 weeks, 3 days, 9 hours, 27 minutes, 28 seconds.
• To count from 1 to 138,761,371,648 would take you about eight thousand, eight hundred twenty-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 138761371648 cubic inches would be around 431.4 feet tall.

Recreational maths with 138761371648

• 138761371648 backwards is 846173167831
• The number of decimal digits it has is: 12
• The sum of 138761371648's digits is 55
• More coming soon!