138978907836721004

Names of 138978907836721004

• Cardinal: 138978907836721004 can be written as One hundred thirty-eight quadrillion, nine hundred seventy-eight trillion, nine hundred seven billion, eight hundred thirty-six million, seven hundred twenty-one thousand and four.

Scientific notation

• Scientific notation: 1.38978907836721004 × 10¹⁷

Factors of 138978907836721004

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 219

Divisors of 138978907836721004

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 4 13 26 52 73 131 146 169 262 292 338 524 676 949 1703 1898 3406 3796 5329 6812 9563 10658 12337 17161 19126 21316 22139 24674 34322 38252 44278 49348 68644 69277 88556 124319 138554 223093 248638 277108 446186 497276 698099 892372 900601 1252753 1396198 1616147 1801202 2248091 2505506 2792396 2900209 3232294 3602404 4496182 5011012 5800418 6464588 8992364 9075287 11600836 16285789 18150574 29225183 32571578 36301148 58450366 65143156 91450969 116900732 117978731 164110643 182901938 211715257 235957462 294499921 328221286 365803876 379927379 423430514 471914924 588999842 656442572 759854758 846861028 1177999684 1188862597 1519709516 2133438359 2377725194 3828498973 4266876718 4755450388 7656997946 8533753436 11980076939 15313995892 15455213761 21498494233 23960153878 27734698667 30910427522 38579489651 42996988466 47920307756 49770486649 55469397334 61820855044 77158979302 85993976932 99540973298 110938794668 154317958604 155741000207 199081946596 279480425029 311482000414 501533365463 558960850058 622964000828 1003066730926 1117921700116 1569390079009 2006133461852 2024633002691 2816302744523 3138780158018 3633245525377 4049266005382 5632605489046 6277560316036 6519933751019 7266491050754 8098532010764 11265210978092 13039867502038 14532982101508 20402071027117 26079735004076 36611935678799 40804142054234 73223871357598 81608284108468 146447742715196 205590100350179 265226923352521 411180200700358 475955163824387 530453846705042 822360401400716 951910327648774 1060907693410084 1903820655297548 2672671304552327 5345342609104654 10690685218209308 34744726959180251 69489453918360502 138978907836721004
• Sum of all divisors σ(n): 269072007480430308
• Sum of proper divisors (its aliquot sum) s(n): 130093099643709304
• 138978907836721004 is a deficient number, because the sum of its proper divisors (130093099643709304) is less than itself. Its deficiency is 8885808193011700

Bases of 138978907836721004

• Binary: 111101101110000001001010010010000111000010010011101101100₂
• Hexadecimal: 0x1EDC09490E1276C
• Base-36: 120FWSUSX46K

Squares and roots of 138978907836721004

• 138978907836721004 squared (138978907836721004²) is 19315136823487790899827294534768016
• 138978907836721004 cubed (138978907836721004³) is 2684396620445165782448619066654689671973319254608064
• The square root of 138978907836721004 is 372798749.7789135613
• The cube root of 138978907836721004 is 517983.9440826707

Scales and comparisons

• 138,978,907,836,721,004 seconds is equal to 4,419,099,379 years, 11 weeks, 3 days, 2 hours, 56 minutes, 44 seconds.
• To count from 1 to 138,978,907,836,721,004 would take you about thirteen billion, two hundred fifty-seven million, two hundred ninety-eight thousand, one hundred thirty-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 138978907836721004 cubic inches would be around 43165.3 feet tall.

Recreational maths with 138978907836721004

• 138978907836721004 backwards is 400127638709879831
• The number of decimal digits it has is: 18
• The sum of 138978907836721004's digits is 83
• More coming soon!