20816138403972

Names of 20816138403972

• Cardinal: 20816138403972 can be written as Twenty trillion, eight hundred sixteen billion, one hundred thirty-eight million, four hundred three thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 2.0816138403972 × 10¹³

Factors of 20816138403972

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 55

Divisors of 20816138403972

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 9 12 18 19 27 31 36 38 54 57 62 76 81 93 108 114 124 162 171 186 228 243 279 324 342 361 372 486 513 558 589 684 722 729 837 961 972 1026 1083 1116 1178 1444 1458 1539 1674 1767 1922 2052 2166 2187 2356 2511 2883 2916 3078 3249 3348 3534 3844 4332 4374 4617 5022 5301 5766 6156 6498 6859 7068 7533 8649 8748 9234 9747 10044 10602 11191 11532 12996 13718 13851 15066 15903 17298 18259 18468 19494 20577 21204 22382 22599 25947 27436 27702 29241 30132 31806 33573 34596 36518 38988 41154 41553 44764 45198 47709 51894 54777 55404 58482 61731 63612 67146 67797 73036 77841 82308 83106 87723 90396 95418 100719 103788 109554 116964 123462 130321 134292 135594 143127 155682 164331 166212 175446 185193 190836 201438 212629 219108 233523 246924 260642 263169 271188 286254 302157 311364 328662 346921 350892 370386 390963 402876 425258 429381 467046 492993 521284 526338 555579 572508 604314 637887 657324 693842 700569 740772 781926 789507 850516 858762 906471 934092 985986 1040763 1052676 1111158 1172889 1208628 1275774 1288143 1387684 1401138 1478979 1563852 1579014 1666737 1717524 1812942 1913661 1971972 2081526 2101707 2222316 2345778 2476099 2551548 2576286 2719413 2802276 2957958 3122289 3158028 3333474 3518667 3625884 3827322 4039951 4163052 4203414 4436937 4691556 4952198 5000211 5152572 5438826 5740983 5915916 6244578 6591499 6666948 7037334 7428297 7654644 8079902 8158239 8406828 8873874 9366867 9904396 10000422 10556001 10877652 11481966 12119853 12489156 13182998 13310811 14074668 14856594 15000633 16159804 16316478 17222949 17747748 18733734 19774497 20000844 21112002 22284891 22963932 24239706 24474717 26365996 26621622 28100601 29713188 30001266 31668003 32632956 34445898 36359559 37467468 39548994 39932433 42224004 44569782 48479412 48949434 51668847 53243244 56201202 59323491 60002532 63336006 66854673 68891796 72719118 76759069 79097988 79864866 84301803 89139564 95004009 97898868 103337694 109078677 112402404 118646982 125238481 126672012 133709346 145438236 153518138 155006541 159729732 168603606 177970473 190008018 200564019 206675388 218157354 230277207 237293964 250476962 252905409 267418692 285012027 307036276 310013082 327236031 337207212 355940946 375715443 380016036 401128038 436314708 460554414 465019623 500953924 505810818 533911419 570024054 601692057 620026164 654472062 690831621 711881892 751430886 758716227 802256076 921108828 930039246 981708093 1011621636 1067822838 1127146329 1140048108 1203384114 1308944124 1381663242 1502861772 1517432454 1601734257 1805076171 1860078492 1963416186 2072494863 2135645676 2254292658 2379531139 2406768228 2763326484 2945124279 3034864908 3203468514 3381438987 3610152342 3926832372 4144989726 4508585316 4759062278 4805202771 5415228513 5890248558 6217484589 6406937028 6762877974 7138593417 7220304684 8289979452 8835372837 9518124556 9610405542 10144316961 10830457026 11780497116 12434969178 13525755948 14277186834 14415608313 17670745674 18652453767 19220811084 20288633922 21415780251 21660914052 24869938356 28554373668 28831216626 30432950883 35341491348 37304907534 40577267844 42831560502 55957361301 57662433252 60865901766 64247340753 74609815068 85663121004 91298852649 111914722602 121731803532 128494681506 167872083903 182597705298 192742022259 223829445204 256989363012 273896557947 335744167806 365195410596 385484044518 547793115894 578226066777 671488335612 770968089036 1095586231788 1156452133554 1734678200331 2312904267108 3469356400662 5204034600993 6938712801324 10408069201986 20816138403972
• Sum of all divisors σ(n): 59589566164800
• Sum of proper divisors (its aliquot sum) s(n): 38773427760828
• 20816138403972 is an abundant number, because the sum of its proper divisors (38773427760828) is greater than itself. Its abundance is 17957289356856

Bases of 20816138403972

• Binary: 100101110111010100010100010010000000010000100₂
• Hexadecimal: 0x12EEA2890084
• Base-36: 7DMSVCK90

Squares and roots of 20816138403972

• 20816138403972 squared (20816138403972²) is 433311618053317963465376784
• 20816138403972 cubed (20816138403972³) is 9019874613446919053609205694775382186048
• The square root of 20816138403972 is 4562470.6469162079
• The cube root of 20816138403972 is 27508.4881363581

Scales and comparisons

• 20,816,138,403,972 seconds is equal to 661,888 years, 42 weeks, 1 day, 19 hours, 46 minutes, 12 seconds.
• To count from 1 to 20,816,138,403,972 would take you about one million, six hundred fifty-four thousand, seven hundred twenty-two 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 20816138403972 cubic inches would be around 2292.4 feet tall.

Recreational maths with 20816138403972

• 20816138403972 backwards is 27930483161802
• 20816138403972 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20816138403972's digits is 54
• More coming soon!