20391037287720

Names of 20391037287720

• Cardinal: 20391037287720 can be written as Twenty trillion, three hundred ninety-one billion, thirty-seven million, two hundred eighty-seven thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.039103728772 × 10¹³

Factors of 20391037287720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 11320

Divisors of 20391037287720

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 121 132 165 220 242 264 330 363 440 484 605 660 726 968 1210 1320 1331 1452 1815 2420 2662 2904 3630 3993 4840 5324 6655 7260 7986 10648 11299 13310 14520 15972 19965 22598 26620 31944 33897 39930 45196 53240 56495 67794 79860 90392 112990 124289 135588 159720 169485 225980 248578 271176 338970 372867 451960 497156 621445 677940 745734 994312 1242890 1355880 1367179 1491468 1864335 2485780 2734358 2982936 3728670 4101537 4971560 5468716 6835895 7457340 8203074 10937432 13671790 14914680 15038969 16406148 20507685 27343580 30077938 32812296 41015370 45116907 54687160 60155876 75194845 82030740 90233814 120311752 127667401 150389690 164061480 180467628 225584535 255334802 300779380 360935256 383002203 451169070 510669604 601558760 638337005 766004406 902338140 1021339208 1276674010 1404341411 1532008812 1804676280 1915011015 2553348020 2808682822 3064017624 3830022030 4213024233 5106696040 5617365644 7021707055 7660044060 8426048466 11234731288 14043414110 15320088120 15447755521 16852096932 21065121165 28086828220 30895511042 33704193864 42130242330 46343266563 56173656440 61791022084 77238777605 84260484660 92686533126 123582044168 154477555210 168520969320 169925310731 185373066252 231716332815 308955110420 339850621462 370746132504 463432665630 509775932193 617910220840 679701242924 849626553655 926865331260 1019551864386 1359402485848 1699253107310 1853730662520 2039103728772 2548879660965 3398506214620 4078207457544 5097759321930 6797012429240 10195518643860 20391037287720
• Sum of all divisors σ(n): 67291782575040
• Sum of proper divisors (its aliquot sum) s(n): 46900745287320
• 20391037287720 is an abundant number, because the sum of its proper divisors (46900745287320) is greater than itself. Its abundance is 26509707999600

Bases of 20391037287720

• Binary: 100101000101110101000100010001011110100101000₂
• Hexadecimal: 0x128BA888BD28
• Base-36: 787IH4BOO

Squares and roots of 20391037287720

• 20391037287720 squared (20391037287720²) is 415794401669187414062798400
• 20391037287720 cubed (20391037287720³) is 8478479148461627568347445272089155648000
• The square root of 20391037287720 is 4515643.6183250777
• The cube root of 20391037287720 is 27319.9419955259

Scales and comparisons

• 20,391,037,287,720 seconds is equal to 648,371 years, 47 weeks, 3 days, 22 minutes.
• To count from 1 to 20,391,037,287,720 would take you about one million, six hundred twenty thousand, nine hundred twenty-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 20391037287720 cubic inches would be around 2276.7 feet tall.

Recreational maths with 20391037287720

• 20391037287720 backwards is 02778273019302
• The number of decimal digits it has is: 14
• The sum of 20391037287720's digits is 51
• More coming soon!