21240011520

Names of 21240011520

• Cardinal: 21240011520 can be written as Twenty-one billion, two hundred forty million, eleven thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.124001152 × 10¹⁰

Factors of 21240011520

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 20291

Divisors of 21240011520

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 28 30 32 35 36 39 40 42 45 48 52 56 60 63 64 65 70 72 78 80 84 90 91 96 104 105 112 117 120 126 128 130 140 144 156 160 168 180 182 192 195 208 210 224 234 240 252 256 260 273 280 288 312 315 320 336 360 364 384 390 416 420 448 455 468 480 504 520 546 560 576 585 624 630 640 672 720 728 768 780 819 832 840 896 910 936 960 1008 1040 1092 1120 1152 1170 1248 1260 1280 1344 1365 1440 1456 1560 1638 1664 1680 1792 1820 1872 1920 2016 2080 2184 2240 2304 2340 2496 2520 2688 2730 2880 2912 3120 3276 3328 3360 3640 3744 3840 4032 4095 4160 4368 4480 4680 4992 5040 5376 5460 5760 5824 6240 6552 6720 7280 7488 8064 8190 8320 8736 8960 9360 9984 10080 10920 11520 11648 12480 13104 13440 14560 14976 16128 16380 16640 17472 18720 20160 20261 21840 23296 24960 26208 26880 29120 29952 32760 34944 37440 40320 40522 43680 49920 52416 58240 60783 65520 69888 74880 80640 81044 87360 101305 104832 116480 121566 131040 141827 149760 162088 174720 182349 202610 209664 243132 262080 263393 283654 303915 324176 349440 364698 405220 425481 486264 524160 526786 567308 607830 648352 709135 729396 790179 810440 850962 911745 972528 1048320 1053572 1134616 1215660 1276443 1296704 1316965 1418270 1458792 1580358 1620880 1701924 1823490 1843751 1945056 2107144 2127405 2269232 2370537 2431320 2552886 2593408 2633930 2836540 2917584 3160716 3241760 3403848 3646980 3687502 3890112 3950895 4214288 4254810 4538464 4741074 4862640 5105772 5186816 5267860 5531253 5673080 5835168 6321432 6382215 6483520 6807696 7293960 7375004 7780224 7901790 8428576 8509620 9076928 9218755 9482148 9725280 10211544 10535720 11062506 11346160 11670336 11852685 12642864 12764430 12967040 13615392 14587920 14750008 15560448 15803580 16593759 16857152 17019240 18153856 18437510 18964296 19450560 20423088 21071440 22125012 22692320 23340672 23705370 25285728 25528860 25934080 27230784 27656265 29175840 29500016 31607160 33187518 33714304 34038480 36307712 36875020 37928592 38901120 40846176 42142880 44250024 45384640 46681344 47410740 50571456 51057720 54461568 55312530 58351680 59000032 63214320 66375036 67428608 68076960 73750040 75857184 77802240 81692352 82968795 84285760 88500048 90769280 94821480 101142912 102115440 108923136 110625060 116703360 118000064 126428640 132750072 136153920 147500080 151714368 163384704 165937590 168571520 177000096 181538560 189642960 202285824 204230880 221250120 233406720 236000128 252857280 265500144 272307840 295000160 303428736 326769408 331875180 337143040 354000192 379285920 408461760 442500240 472000256 505714560 531000288 544615680 590000320 606857472 663750360 708000384 758571840 816923520 885000480 1011429120 1062000576 1180000640 1327500720 1416000768 1517143680 1633847040 1770000960 2124001152 2360001280 2655001440 3034287360 3540001920 4248002304 5310002880 7080003840 10620005760 21240011520
• Sum of all divisors σ(n): 90451513152
• Sum of proper divisors (its aliquot sum) s(n): 69211501632
• 21240011520 is an abundant number, because the sum of its proper divisors (69211501632) is greater than itself. Its abundance is 47971490112

Bases of 21240011520

• Binary: 10011110010000000001101101100000000₂
• Hexadecimal: 0x4F200DB00
• Base-36: 9R9R5S0

Squares and roots of 21240011520

• 21240011520 squared (21240011520²) is 451138089369732710400
• 21240011520 cubed (21240011520³) is 9582178215323912308216823808000
• The square root of 21240011520 is 145739.5331404627
• The cube root of 21240011520 is 2769.3950778859

Scales and comparisons

• 21,240,011,520 seconds is equal to 675 years, 19 weeks, 11 hours, 12 minutes.
• To count from 1 to 21,240,011,520 would take you about one thousand, three hundred fifty 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 21240011520 cubic inches would be around 230.8 feet tall.

Recreational maths with 21240011520

• 21240011520 backwards is 02511004212
• 21240011520 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21240011520's digits is 18
• More coming soon!