128040872547840

Names of 128040872547840

• Cardinal: 128040872547840 can be written as One hundred twenty-eight trillion, forty billion, eight hundred seventy-two million, five hundred forty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.2804087254784 × 10¹⁴

Factors of 128040872547840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2381712676

Divisors of 128040872547840

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 128 140 160 168 192 210 224 240 256 280 320 336 384 420 448 480 512 560 640 672 768 840 896 960 1120 1280 1344 1536 1680 1792 1920 2240 2560 2688 3360 3584 3840 4480 5376 6720 7680 8960 10752 13440 17920 26880 53760 2381712659 4763425318 7145137977 9526850636 11908563295 14290275954 16671988613 19053701272 23817126590 28580551908 33343977226 35725689885 38107402544 47634253180 50015965839 57161103816 66687954452 71451379770 76214805088 83359943065 95268506360 100031931678 114322207632 133375908904 142902759540 152429610176 166719886130 190537012720 200063863356 228644415264 250079829195 266751817808 285805519080 304859220352 333439772260 381074025440 400127726712 457288830528 500159658390 533503635616 571611038160 609718440704 666879544520 762148050880 800255453424 914577661056 1000319316780 1067007271232 1143222076320 1219436881408 1333759089040 1524296101760 1600510906848 1829155322112 2000638633560 2134014542464 2286444152640 2667518178080 3048592203520 3201021813696 3658310644224 4001277267120 4268029084928 4572888305280 5335036356160 6097184407040 6402043627392 8002554534240 8536058169856 9145776610560 10670072712320 12804087254784 16005109068480 18291553221120 21340145424640 25608174509568 32010218136960 42680290849280 64020436273920 128040872547840
• Sum of all divisors σ(n): 467806473826560
• Sum of proper divisors (its aliquot sum) s(n): 339765601278720
• 128040872547840 is an abundant number, because the sum of its proper divisors (339765601278720) is greater than itself. Its abundance is 211724728730880

Bases of 128040872547840

• Binary: 11101000111001111010110101110011001011000000000₂
• Hexadecimal: 0x7473D6B99600
• Base-36: 19DX5XLIIO

Squares and roots of 128040872547840

• 128040872547840 squared (128040872547840²) is 16394465042812206933088665600
• 128040872547840 cubed (128040872547840³) is 2099161609036736037011357842963697762304000
• The square root of 128040872547840 is 11315514.6832939067
• The cube root of 128040872547840 is 50402.2056107077

Scales and comparisons

• 128,040,872,547,840 seconds is equal to 4,071,303 years, 35 weeks, 6 days, 9 hours, 4 minutes.
• To count from 1 to 128,040,872,547,840 would take you about ten million, one hundred seventy-eight thousand, two hundred fifty-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 128040872547840 cubic inches would be around 4200.2 feet tall.

Recreational maths with 128040872547840

• 128040872547840 backwards is 048745278040821
• 128040872547840 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 128040872547840's digits is 60
• More coming soon!