138945617142605

Names of 138945617142605

• Cardinal: 138945617142605 can be written as One hundred thirty-eight trillion, nine hundred forty-five billion, six hundred seventeen million, one hundred forty-two thousand, six hundred five.

Scientific notation

• Scientific notation: 1.38945617142605 × 10¹⁴

Factors of 138945617142605

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1171

Divisors of 138945617142605

• Number of divisors d(n): 162
• Complete list of divisors:
  1 5 7 13 35 49 53 65 91 169 245 265 371 455 637 689 845 1093 1183 1855 2597 2809 3185 3445 4823 5465 5915 7651 8281 8957 12985 14045 14209 19663 24115 33761 36517 38255 41405 44785 53557 57929 62699 71045 98315 99463 137641 168805 182585 184717 255619 267785 289645 313495 405503 438893 474721 497315 688205 696241 753077 923585 1194649 1278095 1293019 1789333 2027515 2194465 2373605 2838521 3070237 3323047 3481205 3765385 5271539 5973245 6465095 8362543 8946665 9051133 9790001 14192605 15351185 15530437 16615235 21491659 23261329 26357695 36900773 39913081 41812715 45255665 48950005 58537801 63316397 68530007 77652185 107458295 108713059 116306645 150441613 184503865 199565405 201895681 279391567 292689005 316581985 342650035 443214779 479710049 518870053 543565295 752208065 760991413 823113161 1009478405 1396957835 1413269767 1955740969 2216073895 2398550245 2594350265 3102503453 3355769041 3632090371 3804957065 4115565805 5761792127 7066348835 9778704845 9892888369 10700471093 15512517265 16778845205 18160451855 23490383287 25424632597 28808960635 40332544889 43624997533 49464441845 53502355465 74903297651 117451916435 127123162985 164432683009 201662724445 218124987665 305374982731 374516488255 524323083557 567124967929 822163415045 1526874913655 2137624879117 2621615417785 2835624839645 3969874775503 10688124395585 19849373877515 27789123428521 138945617142605
• Sum of all divisors σ(n): 214257676512474
• Sum of proper divisors (its aliquot sum) s(n): 75312059369869
• 138945617142605 is a deficient number, because the sum of its proper divisors (75312059369869) is less than itself. Its deficiency is 63633557772736

Bases of 138945617142605

• Binary: 11111100101111011001100001001110010001101001101₂
• Hexadecimal: 0x7E5ECC27234D
• Base-36: 1D92QGZ6FH

Squares and roots of 138945617142605

• 138945617142605 squared (138945617142605²) is 19305884523139368444906186025
• 138945617142605 cubed (138945617142605³) is 2682468039551465987990110161446249083095125
• The square root of 138945617142605 is 11787519.5500412639
• The cube root of 138945617142605 is 51794.2581878005

Scales and comparisons

• 138,945,617,142,605 seconds is equal to 4,418,040 years, 43 weeks, 4 days, 1 hour, 50 minutes, 5 seconds.
• To count from 1 to 138,945,617,142,605 would take you about eleven million, forty-five thousand, one hundred two 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 138945617142605 cubic inches would be around 4316.2 feet tall.

Recreational maths with 138945617142605

• 138945617142605 backwards is 506241716549831
• The number of decimal digits it has is: 15
• The sum of 138945617142605's digits is 62
• More coming soon!