138215518875

Names of 138215518875

• Cardinal: 138215518875 can be written as One hundred thirty-eight billion, two hundred fifteen million, five hundred eighteen thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 1.38215518875 × 10¹¹

Factors of 138215518875

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2864

Divisors of 138215518875

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 9 15 21 25 29 31 35 45 49 63 75 87 93 105 125 145 147 155 175 203 217 225 245 261 279 315 375 435 441 465 525 609 651 725 735 775 875 899 1015 1085 1125 1225 1305 1395 1421 1519 1575 1827 1953 2175 2205 2325 2625 2697 2789 3045 3255 3625 3675 3875 4263 4495 4557 5075 5425 6125 6293 6525 6975 7105 7595 7875 8091 8367 9135 9765 10875 11025 11625 12789 13485 13671 13945 15225 16275 18375 18879 19523 21315 22475 22785 25101 25375 27125 31465 32625 34875 35525 37975 40455 41835 44051 45675 48825 55125 56637 58569 63945 67425 68355 69725 76125 80881 81375 86459 94395 97615 106575 112375 113925 125505 132153 136661 157325 175707 177625 189875 202275 209175 220255 228375 242643 244125 259377 283185 292845 319725 337125 341775 348625 396459 404405 409983 432295 471975 488075 532875 566167 569625 605213 627525 660765 683305 727929 778131 786625 878535 1011375 1045875 1101275 1213215 1229949 1296885 1415925 1464225 1598625 1698501 1708875 1815639 1982295 2022025 2049915 2161475 2359875 2440375 2507311 2830835 3026065 3137625 3303825 3416525 3639645 3890655 3963169 4236491 4392675 5095503 5446917 5506375 6066075 6149745 6484425 7079625 7321125 7521933 8492505 9078195 9911475 10110125 10249575 10807375 11889507 12536555 12709473 14154175 15130325 16519125 17082625 17551177 18198225 19453275 19815845 21182455 21963375 22565799 25477515 27234585 30330375 30748725 32422125 35668521 37609665 38128419 42462525 45390975 49557375 51247875 52653531 59447535 62682775 63547365 70770875 75651625 87755885 90991125 97266375 99079225 105912275 112828995 122858239 127387575 136172925 153743625 157960593 178342605 188048325 190642095 212312625 226954875 263267655 297237675 313413875 317736825 368574717 438779425 495396125 529561375 564144975 614291195 636937875 680864625 789802965 891713025 940241625 953210475 1105724151 1316338275 1486188375 1588684125 1842873585 2193897125 2820724875 3071455975 3949014825 4458565125 4766052375 5528620755 6581691375 9214367925 15357279875 19745074125 27643103775 46071839625 138215518875
• Sum of all divisors σ(n): 309612326400
• Sum of proper divisors (its aliquot sum) s(n): 171396807525
• 138215518875 is an abundant number, because the sum of its proper divisors (171396807525) is greater than itself. Its abundance is 33181288650

Bases of 138215518875

• Binary: 10000000101110010010010111001010011011₂
• Hexadecimal: 0x202E49729B
• Base-36: 1RHTY8WR

Squares and roots of 138215518875

• 138215518875 squared (138215518875²) is 19103529657885481265625
• 138215518875 cubed (138215518875³) is 2640404264008593028457451076171875
• The square root of 138215518875 is 371773.4779069105
• The cube root of 138215518875 is 5170.3380124497

Scales and comparisons

• 138,215,518,875 seconds is equal to 4,394 years, 42 weeks, 6 days, 15 hours, 41 minutes, 15 seconds.
• To count from 1 to 138,215,518,875 would take you about eight thousand, seven hundred eighty-nine 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 138215518875 cubic inches would be around 430.9 feet tall.

Recreational maths with 138215518875

• 138215518875 backwards is 578815512831
• The number of decimal digits it has is: 12
• The sum of 138215518875's digits is 54
• More coming soon!