138389045802

Names of 138389045802

• Cardinal: 138389045802 can be written as One hundred thirty-eight billion, three hundred eighty-nine million, forty-five thousand, eight hundred two.

Scientific notation

• Scientific notation: 1.38389045802 × 10¹¹

Factors of 138389045802

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 414

Divisors of 138389045802

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 7 14 17 21 34 42 51 61 102 119 122 127 183 197 238 254 357 366 381 394 427 591 714 762 854 889 1037 1182 1281 1379 1778 2074 2159 2562 2667 2758 3111 3349 4137 4318 5334 6222 6477 6698 7259 7747 8274 10047 12017 12954 14518 15113 15494 16129 20094 21777 23241 23443 24034 25019 30226 32258 36051 43554 45339 46482 46886 48387 50038 54229 70329 72102 75057 84119 90678 96774 108458 112903 131699 140658 150114 162687 168238 175133 204289 225806 252357 263398 274193 325374 338709 350266 395097 408578 425323 504714 525399 548386 612867 677418 790194 822579 850646 921893 983869 1050798 1225734 1275969 1430023 1526159 1645158 1843786 1919351 1967738 2551938 2765679 2860046 2951607 2977261 3052318 3177413 3838702 4290069 4578477 5531358 5758053 5903214 5954522 6354826 6887083 8580138 8931783 9156954 9532239 10683113 11516106 13774166 16725773 17863566 19064478 20661249 21366226 22241891 25944703 32049339 33451546 41322498 44483782 50177319 51889406 54016021 64098678 66725673 77834109 100354638 108032042 117080411 133451346 155668218 162048063 181612921 193822193 234160822 324096126 351241233 363225842 378112147 387644386 544838763 581466579 702482466 756224294 1089677526 1134336441 1162933158 1356755351 2268672882 2713510702 3294977281 4070266053 6589954562 8140532106 9884931843 19769863686 23064840967 46129681934 69194522901 138389045802
• Sum of all divisors σ(n): 344858570496
• Sum of proper divisors (its aliquot sum) s(n): 206469524694
• 138389045802 is an abundant number, because the sum of its proper divisors (206469524694) is greater than itself. Its abundance is 68080478892

Bases of 138389045802

• Binary: 10000000111000101000010100001000101010₂
• Hexadecimal: 0x2038A1422A
• Base-36: 1RKP9J56

Squares and roots of 138389045802

• 138389045802 squared (138389045802²) is 19151527997988053823204
• 138389045802 cubed (138389045802³) is 2650361685291854144388219566389608
• The square root of 138389045802 is 372006.7819301149
• The cube root of 138389045802 is 5172.5008608919

Scales and comparisons

• 138,389,045,802 seconds is equal to 4,400 years, 17 weeks, 6 days, 1 hour, 36 minutes, 42 seconds.
• To count from 1 to 138,389,045,802 would take you about eight thousand, eight hundred 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 138389045802 cubic inches would be around 431 feet tall.

Recreational maths with 138389045802

• 138389045802 backwards is 208540983831
• 138389045802 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138389045802's digits is 51
• More coming soon!