138249401290

Names of 138249401290

• Cardinal: 138249401290 can be written as One hundred thirty-eight billion, two hundred forty-nine million, four hundred one thousand, two hundred ninety.

Scientific notation

• Scientific notation: 1.3824940129 × 10¹¹

Factors of 138249401290

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 9068

Divisors of 138249401290

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 7 10 11 13 14 22 26 35 55 65 70 77 91 110 130 143 154 182 286 385 455 715 770 910 1001 1430 1951 2002 3902 5005 7079 9755 10010 13657 14158 19510 21461 25363 27314 35395 42922 49553 50726 68285 70790 77869 92027 99106 107305 126815 136570 150227 155738 177541 184054 214610 247765 253630 278993 300454 355082 389345 460135 495530 545083 557986 644189 751135 778690 887705 920270 1012297 1090166 1288378 1394965 1502270 1775410 1952951 2024594 2725415 2789930 3220945 3905902 5061485 5450830 6441890 7086079 9764755 10122970 13811129 14172158 19529510 27622258 35430395 69055645 70860790 96677903 138111290 151922419 179544677 193355806 303844838 359089354 483389515 759612095 897723385 966779030 1063456933 1256812739 1519224190 1795446770 1974991447 2126913866 2513625478 3949982894 5317284665 6284063695 9874957235 10634569330 12568127390 13824940129 19749914470 27649880258 69124700645 138249401290
• Sum of all divisors σ(n): 334337310720
• Sum of proper divisors (its aliquot sum) s(n): 196087909430
• 138249401290 is an abundant number, because the sum of its proper divisors (196087909430) is greater than itself. Its abundance is 57838508140

Bases of 138249401290

• Binary: 10000000110000010011100111001111001010₂
• Hexadecimal: 0x20304E73CA
• Base-36: 1RIE4GQY

Squares and roots of 138249401290

• 138249401290 squared (138249401290²) is 19112896957043453664100
• 138249401290 cubed (138249401290³) is 2642346561228720317575681766689000
• The square root of 138249401290 is 371819.0437430551
• The cube root of 138249401290 is 5170.7604667605

Scales and comparisons

• 138,249,401,290 seconds is equal to 4,395 years, 46 weeks, 6 days, 19 hours, 28 minutes, 10 seconds.
• To count from 1 to 138,249,401,290 would take you about eight thousand, seven hundred ninety-one 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 138249401290 cubic inches would be around 430.9 feet tall.

Recreational maths with 138249401290

• 138249401290 backwards is 092104942831
• The number of decimal digits it has is: 12
• The sum of 138249401290's digits is 43
• More coming soon!