20720851038720

Names of 20720851038720

• Cardinal: 20720851038720 can be written as Twenty trillion, seven hundred twenty billion, eight hundred fifty-one million, thirty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.072085103872 × 10¹³

Factors of 20720851038720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 42825850

Divisors of 20720851038720

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 64 70 72 80 84 90 96 105 108 112 120 126 128 135 140 144 160 168 180 189 192 210 216 224 240 252 256 270 280 288 315 320 336 360 378 384 420 432 448 480 504 512 540 560 576 630 640 672 720 756 768 840 864 896 945 960 1008 1080 1120 1152 1260 1280 1344 1440 1512 1536 1680 1728 1792 1890 1920 2016 2160 2240 2304 2520 2560 2688 2880 3024 3360 3456 3584 3780 3840 4032 4320 4480 4608 5040 5376 5760 6048 6720 6912 7560 7680 8064 8640 8960 10080 10752 11520 12096 13440 13824 15120 16128 17280 17920 20160 23040 24192 26880 30240 32256 34560 40320 48384 53760 60480 69120 80640 96768 120960 161280 241920 483840 42825833 85651666 128477499 171303332 214129165 256954998 299780831 342606664 385432497 428258330 513909996 599561662 642387495 685213328 770864994 856516660 899342493 1027819992 1156297491 1199123324 1284774990 1370426656 1498904155 1541729988 1713033320 1798684986 1927162485 2055639984 2312594982 2398246648 2569549980 2698027479 2740853312 2997808310 3083459976 3426066640 3597369972 3854324970 4111279968 4496712465 4625189964 4796493296 5139099960 5396054958 5481706624 5781487455 5995616620 6166919952 6852133280 7194739944 7708649940 8094082437 8222559936 8993424930 9250379928 9592986592 10278199920 10792109916 10963413248 11562974910 11991233240 12333839904 13490137395 13704266560 14389479888 15417299880 16188164874 16445119872 17986849860 18500759856 19185973184 20556399840 21584219832 21926826496 23125949820 23982466480 24667679808 26980274790 27408533120 28778959776 30834599760 32376329748 32890239744 35973699720 37001519712 38371946368 40470412185 41112799680 43168439664 46251899640 47964932960 49335359616 53960549580 54817066240 57557919552 61669199520 64752659496 65780479488 71947399440 74003039424 76743892736 80940824370 82225599360 86336879328 92503799280 95929865920 98670719232 107921099160 109634132480 115115839104 123338399040 129505318992 143894798880 148006078848 153487785472 161881648740 164451198720 172673758656 185007598560 191859731840 197341438464 215842198320 230231678208 246676798080 259010637984 287789597760 296012157696 323763297480 328902397440 345347517312 370015197120 383719463680 431684396640 460463356416 493353596160 518021275968 575579195520 592024315392 647526594960 690695034624 740030394240 767438927360 863368793280 986707192320 1036042551936 1151158391040 1295053189920 1381390069248 1480060788480 1726737586560 2072085103872 2302316782080 2590106379840 2960121576960 3453475173120 4144170207744 5180212759680 6906950346240 10360425519360 20720851038720
• Sum of all divisors σ(n): 84116790109440
• Sum of proper divisors (its aliquot sum) s(n): 63395939070720
• 20720851038720 is an abundant number, because the sum of its proper divisors (63395939070720) is greater than itself. Its abundance is 42675088032000

Bases of 20720851038720

• Binary: 100101101100001110010111101110011001000000000₂
• Hexadecimal: 0x12D872F73200
• Base-36: 7CF0ZPMO0

Squares and roots of 20720851038720

• 20720851038720 squared (20720851038720²) is 429353667768823702939238400
• 20720851038720 cubed (20720851038720³) is 8896573392765872409881074717685710848000
• The square root of 20720851038720 is 4552016.1509731047
• The cube root of 20720851038720 is 27466.4499013695

Scales and comparisons

• 20,720,851,038,720 seconds is equal to 658,858 years, 50 weeks, 2 days, 19 hours, 12 minutes.
• To count from 1 to 20,720,851,038,720 would take you about one million, six hundred forty-seven thousand, one hundred forty-seven 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 20720851038720 cubic inches would be around 2288.9 feet tall.

Recreational maths with 20720851038720

• 20720851038720 backwards is 02783015802702
• 20720851038720 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20720851038720's digits is 45
• More coming soon!