138193947794

Names of 138193947794

• Cardinal: 138193947794 can be written as One hundred thirty-eight billion, one hundred ninety-three million, nine hundred forty-seven thousand, seven hundred ninety-four.

Scientific notation

• Scientific notation: 1.38193947794 × 10¹¹

Factors of 138193947794

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 692

Divisors of 138193947794

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 7 14 37 61 73 74 122 146 181 259 331 362 427 511 518 662 854 1022 1267 2257 2317 2534 2701 4453 4514 4634 5402 6697 8906 11041 12247 13213 13394 15799 18907 20191 22082 24163 24494 26426 31171 31598 37814 40382 46879 48326 59911 62342 77287 85729 92491 93758 119822 141337 154574 164761 169141 171458 184982 282674 329522 338282 408517 419377 488881 747067 805993 817034 838754 894031 977762 1153327 1473943 1494134 1611986 1788062 2216707 2306654 2859619 2947886 3422167 3654571 4373503 4433414 5229469 5641951 5719238 6258217 6844334 7309142 8747006 10317601 10458938 11283902 12516434 15516949 20635202 25581997 29821741 30614521 31033898 51163994 54535891 59643482 61229042 109071782 135219127 161819611 208752187 266783683 270438254 323639222 381751237 417504374 533567366 763502474 946533889 1132737277 1867485781 1893067778 2265474554 3734971562 9870996271 19741992542 69096973897 138193947794
• Sum of all divisors σ(n): 252829484544
• Sum of proper divisors (its aliquot sum) s(n): 114635536750
• 138193947794 is a deficient number, because the sum of its proper divisors (114635536750) is less than itself. Its deficiency is 23558411044

Bases of 138193947794

• Binary: 10000000101101000000000100110010010010₂
• Hexadecimal: 0x202D004C92
• Base-36: 1RHH3WK2

Squares and roots of 138193947794

• 138193947794 squared (138193947794²) is 19097567206890797466436
• 138193947794 cubed (138193947794³) is 2639168205581473262135684051242184
• The square root of 138193947794 is 371744.4657207421
• The cube root of 138193947794 is 5170.0690229191

Scales and comparisons

• 138,193,947,794 seconds is equal to 4,394 years, 7 weeks, 1 day, 23 hours, 43 minutes, 14 seconds.
• To count from 1 to 138,193,947,794 would take you about eight thousand, seven hundred eighty-eight 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 138193947794 cubic inches would be around 430.8 feet tall.

Recreational maths with 138193947794

• 138193947794 backwards is 497749391831
• The number of decimal digits it has is: 12
• The sum of 138193947794's digits is 65
• More coming soon!