138478139294838

Names of 138478139294838

• Cardinal: 138478139294838 can be written as One hundred thirty-eight trillion, four hundred seventy-eight billion, one hundred thirty-nine million, two hundred ninety-four thousand, eight hundred thirty-eight.

Scientific notation

• Scientific notation: 1.38478139294838 × 10¹⁴

Factors of 138478139294838

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 45615

Divisors of 138478139294838

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 14 21 37 42 43 74 86 111 129 222 258 259 301 518 602 777 903 1554 1591 1806 3182 4773 9546 11137 22274 33411 45523 66822 91046 136569 273138 318661 637322 955983 1684351 1911966 1957489 3368702 3914978 5053053 5872467 10106106 11744934 11790457 13702423 23580914 27404846 35371371 41107269 70742742 72427093 82214538 144854186 217281279 434562558 506989651 1013979302 1520968953 2072343529 3041937906 4144687058 6217030587 12434061174 14506404703 29012809406 43519214109 76676710573 87038428218 89110771747 153353421146 178221543494 230030131719 267332315241 460060263438 534664630482 536736974011 623775402229 1073473948022 1247550804458 1610210922033 1871326206687 3220421844066 3297098554639 3742652413374 6594197109278 9891295663917 19782591327834 23079689882473 46159379764946 69239069647419 138478139294838
• Sum of all divisors σ(n): 332643311675136
• Sum of proper divisors (its aliquot sum) s(n): 194165172380298
• 138478139294838 is an abundant number, because the sum of its proper divisors (194165172380298) is greater than itself. Its abundance is 55687033085460

Bases of 138478139294838

• Binary: 11111011111000111110100010011010100010001110110₂
• Hexadecimal: 0x7DF1F44D4476
• Base-36: 1D33Z8QIK6

Squares and roots of 138478139294838

• 138478139294838 squared (138478139294838²) is 19176195062560556179893446244
• 138478139294838 cubed (138478139294838³) is 2655483811018245394451822917133083819688472
• The square root of 138478139294838 is 11767673.4869233179
• The cube root of 138478139294838 is 51736.1062433017

Scales and comparisons

• 138,478,139,294,838 seconds is equal to 4,403,176 years, 25 weeks, 2 days, 20 hours, 7 minutes, 18 seconds.
• To count from 1 to 138,478,139,294,838 would take you about eleven million, seven thousand, nine hundred forty-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 138478139294838 cubic inches would be around 4311.3 feet tall.

Recreational maths with 138478139294838

• 138478139294838 backwards is 838492931874831
• The number of decimal digits it has is: 15
• The sum of 138478139294838's digits is 78
• More coming soon!