20721217912320

Names of 20721217912320

• Cardinal: 20721217912320 can be written as Twenty trillion, seven hundred twenty-one billion, two hundred seventeen million, nine hundred twelve thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.072121791232 × 10¹³

Factors of 20721217912320

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 546

Divisors of 20721217912320

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 127 128 160 192 240 254 256 320 381 384 409 480 508 512 635 640 762 768 818 960 1016 1227 1270 1280 1524 1536 1636 1905 1920 2032 2045 2454 2540 2560 3048 3272 3810 3840 4064 4090 4908 5080 6096 6135 6544 7620 7680 8128 8180 9816 10160 12192 12270 13088 15240 16129 16256 16360 19632 20320 24384 24540 26176 30480 32258 32512 32720 39264 40640 48387 48768 49080 51943 52352 60960 64516 65024 65440 78528 80645 81280 96774 97536 98160 103886 104704 121920 129032 130880 155829 157056 161290 162560 167281 193548 195072 196320 207772 209408 241935 243840 258064 259715 261760 311658 314112 322580 325120 334562 387096 392640 415544 483870 487680 501843 516128 519430 523520 623316 628224 645160 669124 774192 779145 785280 831088 836405 967740 975360 1003686 1032256 1038860 1047040 1246632 1290320 1338248 1548384 1558290 1570560 1662176 1672810 1935480 2007372 2064512 2077720 2493264 2509215 2580640 2676496 3096768 3116580 3141120 3324352 3345620 3870960 4014744 4129024 4155440 4986528 5018430 5161280 5352992 6193536 6233160 6596761 6648704 6691240 7741920 8029488 8258048 8310880 9973056 10036860 10322560 10705984 12387072 12466320 13193522 13297408 13382480 15483840 16058976 16621760 19790283 19946112 20073720 20645120 21244687 21411968 24774144 24932640 26387044 26594816 26764960 30967680 32117952 32983805 33243520 39580566 39892224 40147440 41290240 42489374 42823936 49865280 52774088 53529920 61935360 63734061 64235904 65967610 66487040 79161132 79784448 80294880 84978748 85647872 98951415 99730560 105548176 106223435 107059840 123870720 127468122 128471808 131935220 132974080 158322264 160589760 169957496 197902830 199461120 211096352 212446870 214119680 254936244 256943616 263870440 316644528 318670305 321179520 339914992 395805660 398922240 422192704 424893740 428239360 509872488 527740880 633289056 637340610 642359040 679829984 791611320 844385408 849787480 1019744976 1055481760 1266578112 1274681220 1284718080 1359659968 1583222640 1688770816 1699574960 2039489952 2110963520 2533156224 2549362440 2698075249 2719319936 3166445280 3377541632 3399149920 4078979904 4221927040 5066312448 5098724880 5396150498 5438639872 6332890560 6798299840 8094225747 8157959808 8443854080 10132624896 10197449760 10792300996 10877279744 12665781120 13490376245 13596599680 16188451494 16315919616 16887708160 20394899520 21584601992 25331562240 26980752490 27193199360 32376902988 32631839232 40471128735 40789799040 43169203984 50663124480 53961504980 54386398720 64753805976 80942257470 81579598080 86338407968 107923009960 129507611952 161884514940 163159196160 172676815936 215846019920 259015223904 323769029880 345353631872 431692039840 518030447808 647538059760 690707263744 863384079680 1036060895616 1295076119520 1381414527488 1726768159360 2072121791232 2590152239040 3453536318720 4144243582464 5180304478080 6907072637440 10360608956160 20721217912320
• Sum of all divisors σ(n): 66932498316024
• Sum of proper divisors (its aliquot sum) s(n): 46211280403704
• 20721217912320 is an abundant number, because the sum of its proper divisors (46211280403704) is greater than itself. Its abundance is 25490062491384

Bases of 20721217912320

• Binary: 100101101100010001000110101010011111000000000₂
• Hexadecimal: 0x12D888D53E00
• Base-36: 7CF72505C

Squares and roots of 20721217912320

• 20721217912320 squared (20721217912320²) is 429368871769851219207782400
• 20721217912320 cubed (20721217912320³) is 8897045956710070263989691506824839168000
• The square root of 20721217912320 is 4552056.4487185349
• The cube root of 20721217912320 is 27466.6120030749

Scales and comparisons

• 20,721,217,912,320 seconds is equal to 658,870 years, 33 weeks, 32 minutes.
• To count from 1 to 20,721,217,912,320 would take you about one million, six hundred forty-seven thousand, one hundred seventy-six 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 20721217912320 cubic inches would be around 2288.9 feet tall.

Recreational maths with 20721217912320

• 20721217912320 backwards is 02321971212702
• The number of decimal digits it has is: 14
• The sum of 20721217912320's digits is 39
• More coming soon!