21042655428375

Names of 21042655428375

• Cardinal: 21042655428375 can be written as Twenty-one trillion, forty-two billion, six hundred fifty-five million, four hundred twenty-eight thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 2.1042655428375 × 10¹³

Factors of 21042655428375

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 375

Divisors of 21042655428375

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 9 15 21 25 29 35 45 63 75 87 105 125 145 175 203 225 261 315 331 375 435 525 609 725 841 875 993 1015 1125 1305 1575 1655 1827 2175 2317 2523 2625 2979 3045 3625 4205 4965 5075 5887 6525 6951 7569 7875 8275 9135 9599 10875 11585 12615 14895 15225 17661 20853 21025 24389 24825 25375 28797 29435 32625 34755 37845 41375 45675 47995 52983 57925 63075 67193 73167 74475 76125 86391 88305 104265 105125 109561 121945 124125 143985 147175 170723 173775 189225 201579 219501 228375 239975 264915 278371 289625 315375 328683 335965 365835 372375 431955 441525 512169 521325 547805 604737 609725 719925 735875 766927 835113 853615 868875 946125 986049 1007895 1097505 1199875 1324575 1391855 1536507 1643415 1679825 1829175 1948597 2159775 2207625 2300781 2505339 2560845 2606625 2739025 3023685 3048625 3177269 3599625 3834635 4175565 4268075 4930245 5039475 5487525 5845791 6622875 6902343 6959275 7682535 8072759 8217075 8399125 9145875 9531807 9742985 10798875 11503905 12526695 12804225 13695125 15118425 15886345 17537373 19173175 20877825 21340375 22240883 24218277 24651225 25197375 27437625 28595421 29228955 34511715 34796375 38412675 40363795 41085375 47659035 48714925 56509313 57519525 62633475 64021125 66722649 72654831 75592125 79431725 87686865 92140801 95865875 104389125 111204415 121091385 123256125 142977105 146144775 169527939 172558575 192063375 200167947 201818975 238295175 243574625 276422403 282546565 287597625 313167375 333613245 363274155 397158625 438434325 460704005 508583817 556022075 605456925 644985607 714885525 730723875 829267209 847639695 862792875 1000839735 1009094875 1191475875 1382112015 1412732825 1668066225 1816370775 1934956821 2192171625 2303520025 2542919085 2672083229 2780110375 3027284625 3224928035 3574427625 4146336045 4238198475 5004198675 5804870463 6910560075 7063664125 8016249687 8340331125 9081853875 9674784105 11517600125 12714595425 13360416145 16124640175 18704582603 20731680225 21190992375 24048749061 25020993375 29024352315 34552800375 40081248435 48373920525 56113747809 63572977125 66802080725 80623200875 93522913015 103658401125 120243745305 145121761575 168341243427 200406242175 241869602625 280568739045 334010403625 467614565075 601218726525 725608807875 841706217135 1002031210875 1402843695225 2338072825375 3006093632625 4208531085675 7014218476125 21042655428375
• Sum of all divisors σ(n): 45036155848320
• Sum of proper divisors (its aliquot sum) s(n): 23993500419945
• 21042655428375 is an abundant number, because the sum of its proper divisors (23993500419945) is greater than itself. Its abundance is 2950844991570

Bases of 21042655428375

• Binary: 100110010001101100000000000000111111100010111₂
• Hexadecimal: 0x132360007F17
• Base-36: 7GIV1QIVR

Squares and roots of 21042655428375

• 21042655428375 squared (21042655428375²) is 442793347477319854755140625
• 21042655428375 cubed (21042655428375³) is 9317547836941962253859426429092740234375
• The square root of 21042655428375 is 4587227.4227876473
• The cube root of 21042655428375 is 27607.9089864565

Scales and comparisons

• 21,042,655,428,375 seconds is equal to 669,091 years, 18 weeks, 2 days, 15 hours, 26 minutes, 15 seconds.
• To count from 1 to 21,042,655,428,375 would take you about one million, six hundred seventy-two thousand, seven hundred twenty-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 21042655428375 cubic inches would be around 2300.7 feet tall.

Recreational maths with 21042655428375

• 21042655428375 backwards is 57382455624012
• The number of decimal digits it has is: 14
• The sum of 21042655428375's digits is 54
• More coming soon!