138338281872

Names of 138338281872

• Cardinal: 138338281872 can be written as One hundred thirty-eight billion, three hundred thirty-eight million, two hundred eighty-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.38338281872 × 10¹¹

Factors of 138338281872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1821

Divisors of 138338281872

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 307 336 409 504 614 818 921 1008 1093 1227 1228 1636 1842 2149 2186 2454 2456 2763 2863 3272 3279 3681 3684 4298 4372 4908 4912 5526 5726 6447 6544 6558 7362 7368 7651 8589 8596 8744 9816 9837 11052 11452 12894 13116 14724 14736 15302 17178 17192 17488 19341 19632 19674 22104 22904 22953 25767 25788 26232 29448 30604 34356 34384 38682 39348 44208 45808 45906 51534 51576 52464 58896 61208 68712 68859 77364 78696 91812 103068 103152 122416 125563 137424 137718 154728 157392 183624 206136 251126 275436 309456 335551 367248 376689 412272 447037 502252 550872 671102 753378 878941 894074 1004504 1006653 1101744 1130067 1341111 1342204 1506756 1757882 1788148 2009008 2013306 2260134 2348857 2636823 2682222 2684408 3013512 3019959 3129259 3515764 3576296 4023333 4026612 4520268 4697714 5273646 5364444 5368816 6027024 6039918 6258518 7031528 7046571 7152592 7910469 8046666 8053224 9040536 9387777 9395428 10547292 10728888 12079836 12517036 14063056 14093142 15820938 16093332 16106448 18081072 18775554 18790856 21094584 21139713 21457776 24159672 25034072 28163331 28186284 31641876 32186664 37551108 37581712 42189168 42279426 48319344 50068144 56326662 56372568 63283752 64373328 75102216 84558852 112653324 112745136 126567504 137240359 150204432 169117704 225306648 274480718 338235408 411721077 450613296 548961436 823442154 960682513 1097922872 1235163231 1646884308 1921365026 2195845744 2470326462 2882047539 3293768616 3842730052 4940652924 5764095078 6587537232 7685460104 8646142617 9881305848 11528190156 15370920208 17292285234 19762611696 23056380312 34584570468 46112760624 69169140936 138338281872
• Sum of all divisors σ(n): 445396631680
• Sum of proper divisors (its aliquot sum) s(n): 307058349808
• 138338281872 is an abundant number, because the sum of its proper divisors (307058349808) is greater than itself. Its abundance is 168720067936

Bases of 138338281872

• Binary: 10000000110101100110101010100110010000₂
• Hexadecimal: 0x20359AA990
• Base-36: 1RJV1HG0

Squares and roots of 138338281872

• 138338281872 squared (138338281872²) is 19137480231296923824384
• 138338281872 cubed (138338281872³) is 2647446134556981604144146018766848
• The square root of 138338281872 is 371938.5458271297
• The cube root of 138338281872 is 5171.8683238709

Scales and comparisons

• 138,338,281,872 seconds is equal to 4,398 years, 37 weeks, 6 days, 12 hours, 31 minutes, 12 seconds.
• To count from 1 to 138,338,281,872 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 138338281872 cubic inches would be around 431 feet tall.

Recreational maths with 138338281872

• 138338281872 backwards is 278182833831
• The number of decimal digits it has is: 12
• The sum of 138338281872's digits is 54
• More coming soon!