138478867220280

Names of 138478867220280

• Cardinal: 138478867220280 can be written as One hundred thirty-eight trillion, four hundred seventy-eight billion, eight hundred sixty-seven million, two hundred twenty thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.3847886722028 × 10¹⁴

Factors of 138478867220280

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 644

Divisors of 138478867220280

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 17 20 24 30 34 40 51 60 68 85 102 120 136 170 204 255 289 340 408 510 578 617 680 867 1020 1156 1234 1445 1734 1851 2040 2312 2468 2890 3085 3468 3702 4335 4913 4936 5780 6170 6936 7404 8670 9255 9826 10489 11560 12340 14739 14808 17340 18510 19652 20978 24565 24680 29478 31467 34680 37020 39304 41956 49130 52445 58956 62934 73695 74040 83912 98260 104890 117912 125868 147390 157335 178313 196520 209780 251736 294780 314670 356626 380689 419560 534939 589560 629340 713252 761378 891565 1069878 1142067 1258680 1426504 1522756 1783130 1903445 2139756 2284134 2674695 3031321 3045512 3566260 3806890 4279512 4568268 5349390 5710335 6062642 6471713 7132520 7613780 9093963 9136536 10698780 11420670 12125284 12943426 15156605 15227560 18187926 19415139 21397560 22841340 24250568 25886852 30313210 32358565 36375852 38830278 45469815 45682680 51773704 60626420 64717130 72751704 77660556 90939630 97075695 110019121 121252840 129434260 155321112 181879260 194151390 220038242 234885113 258868520 330057363 363758520 388302780 440076484 469770226 550095605 660114726 704655339 776605560 880152968 939540452 1100191210 1174425565 1320229452 1409310678 1650286815 1870325057 1879080904 2200382420 2348851130 2640458904 2818621356 3300573630 3523276695 3740650114 3993046921 4400764840 4697702260 5610975171 5637242712 6601147260 7046553390 7481300228 7986093842 9351625285 9395404520 11221950342 11979140763 13202294520 14093106780 14962600456 15972187684 18703250570 19965234605 22443900684 23958281526 28054875855 28186213560 31944375368 37406501140 39930469210 44887801368 47916563052 56109751710 59895703815 67881797657 74813002280 79860938420 95833126104 112219503420 119791407630 135763595314 159721876840 203645392971 224439006840 239582815260 271527190628 339408988285 407290785942 479165630520 543054381256 678817976570 814581571884 1018226964855 1153990560169 1357635953140 1629163143768 2036453929710 2307981120338 2715271906280 3461971680507 4072907859420 4615962240676 5769952800845 6923943361014 8145815718840 9231924481352 11539905601690 13847886722028 17309858402535 23079811203380 27695773444056 34619716805070 46159622406760 69239433610140 138478867220280
• Sum of all divisors σ(n): 442112656464000
• Sum of proper divisors (its aliquot sum) s(n): 303633789243720
• 138478867220280 is an abundant number, because the sum of its proper divisors (303633789243720) is greater than itself. Its abundance is 165154922023440

Bases of 138478867220280

• Binary: 11111011111001000011111101100001000011100111000₂
• Hexadecimal: 0x7DF21FB08738
• Base-36: 1D34BA4HFC

Squares and roots of 138478867220280

• 138478867220280 squared (138478867220280²) is 19176396666611938694043278400
• 138478867220280 cubed (138478867220280³) is 2655525687759174656745850697321426165952000
• The square root of 138478867220280 is 11767704.4159122215
• The cube root of 138478867220280 is 51736.1968953045

Scales and comparisons

• 138,478,867,220,280 seconds is equal to 4,403,199 years, 32 weeks, 6 days, 21 hours, 38 minutes.
• To count from 1 to 138,478,867,220,280 would take you about eleven million, seven thousand, nine hundred ninety-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 138478867220280 cubic inches would be around 4311.3 feet tall.

Recreational maths with 138478867220280

• 138478867220280 backwards is 082022768874831
• The number of decimal digits it has is: 15
• The sum of 138478867220280's digits is 66
• More coming soon!