138637903875

Names of 138637903875

• Cardinal: 138637903875 can be written as One hundred thirty-eight billion, six hundred thirty-seven million, nine hundred three thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 1.38637903875 × 10¹¹

Factors of 138637903875

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 183

Divisors of 138637903875

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 15 25 29 37 75 87 109 111 125 145 185 327 375 435 545 555 725 841 925 1073 1635 2175 2523 2725 2775 3161 3219 3625 4033 4205 4625 5365 8175 9483 10875 11881 12099 12615 13625 13875 15805 16095 20165 21025 26825 31117 35643 40875 47415 59405 60495 63075 79025 80475 91669 93351 100825 105125 116957 134125 155585 178215 237075 275007 297025 302475 315375 344549 350871 395125 402375 439597 458345 466755 504125 584785 777925 891075 1033647 1185375 1318791 1375035 1485125 1512375 1722745 1754355 2197985 2291725 2333775 2923925 3391753 3889625 4455375 5168235 6593955 6875175 8613725 8771775 9991921 10175259 10989925 11458625 11668875 12748313 14619625 16958765 25841175 29975763 32969775 34375875 38244939 43068625 43858875 49959605 50876295 54949625 63741565 84793825 129205875 149878815 164848875 191224695 249798025 254381475 318707825 369701077 423969125 749394075 956123475 1109103231 1248990125 1271907375 1593539125 1848505385 3746970375 4780617375 5545516155 9242526925 27727580775 46212634625 138637903875
• Sum of all divisors σ(n): 247651945632
• Sum of proper divisors (its aliquot sum) s(n): 109014041757
• 138637903875 is a deficient number, because the sum of its proper divisors (109014041757) is less than itself. Its deficiency is 29623862118

Bases of 138637903875

• Binary: 10000001000111011101101000100000000011₂
• Hexadecimal: 0x2047768803
• Base-36: 1ROTFF9F

Squares and roots of 138637903875

• 138637903875 squared (138637903875²) is 19220468390853740015625
• 138637903875 cubed (138637903875³) is 2664685449203656737470459748046875
• The square root of 138637903875 is 372341.1122546099
• The cube root of 138637903875 is 5175.5994871333

Scales and comparisons

• 138,637,903,875 seconds is equal to 4,408 years, 13 weeks, 2 days, 8 hours, 51 minutes, 15 seconds.
• To count from 1 to 138,637,903,875 would take you about eight thousand, eight hundred sixteen 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 138637903875 cubic inches would be around 431.3 feet tall.

Recreational maths with 138637903875

• 138637903875 backwards is 578309736831
• The number of decimal digits it has is: 12
• The sum of 138637903875's digits is 60
• More coming soon!