138338279728

Names of 138338279728

• Cardinal: 138338279728 can be written as One hundred thirty-eight billion, three hundred thirty-eight million, two hundred seventy-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.38338279728 × 10¹¹

Factors of 138338279728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9418

Divisors of 138338279728

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 8 11 16 22 43 44 86 88 121 172 176 181 242 344 362 473 484 688 724 946 968 1448 1892 1936 1991 2896 3784 3982 5203 7568 7783 7964 9181 10406 15566 15928 18362 20812 21901 31132 31856 36724 41624 43802 62264 73448 83248 85613 87604 100991 124528 146896 171226 175208 201982 342452 350416 394783 403964 684904 789566 807928 941743 1110901 1369808 1579132 1615856 1661761 1883486 2221802 3158264 3323522 3766972 4342613 4443604 6316528 6647044 7533944 8685226 8887208 13294088 15067888 17370452 17774416 18279371 26588176 34740904 36558742 47768743 69481808 71455723 73117484 95537486 142911446 146234968 191074972 201073081 285822892 292469936 382149944 402146162 571645784 764299888 786012953 804292324 1143291568 1572025906 1608584648 3144051812 3217169296 6288103624 8646142483 12576207248 17292284966 34584569932 69169139864 138338279728
• Sum of all divisors σ(n): 303161947088
• Sum of proper divisors (its aliquot sum) s(n): 164823667360
• 138338279728 is an abundant number, because the sum of its proper divisors (164823667360) is greater than itself. Its abundance is 26485387632

Bases of 138338279728

• Binary: 10000000110101100110101010000100110000₂
• Hexadecimal: 0x20359AA130
• Base-36: 1RJV1FSG

Squares and roots of 138338279728

• 138338279728 squared (138338279728²) is 19137479638102375753984
• 138338279728 cubed (138338279728³) is 2647446011464710664156003502436352
• The square root of 138338279728 is 371938.5429449333
• The cube root of 138338279728 is 5171.8682971527

Scales and comparisons

• 138,338,279,728 seconds is equal to 4,398 years, 37 weeks, 6 days, 11 hours, 55 minutes, 28 seconds.
• To count from 1 to 138,338,279,728 would take you about eight thousand, seven hundred ninety-seven 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 138338279728 cubic inches would be around 431 feet tall.

Recreational maths with 138338279728

• 138338279728 backwards is 827972833831
• The number of decimal digits it has is: 12
• The sum of 138338279728's digits is 61
• More coming soon!