21355128824400

Names of 21355128824400

• Cardinal: 21355128824400 can be written as Twenty-one trillion, three hundred fifty-five billion, one hundred twenty-eight million, eight hundred twenty-four thousand, four hundred.

Scientific notation

• Scientific notation: 2.13551288244 × 10¹³

Factors of 21355128824400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 17

Divisors of 21355128824400

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 27 28 30 35 36 40 42 45 48 49 50 54 56 60 63 70 72 75 80 84 90 98 100 105 108 112 120 126 135 140 144 147 150 168 175 180 189 196 200 210 216 225 240 245 252 270 280 294 300 315 336 343 350 360 378 392 400 420 432 441 450 490 504 525 540 560 588 600 630 675 686 700 720 735 756 784 840 882 900 945 980 1008 1029 1050 1080 1176 1200 1225 1260 1323 1350 1372 1400 1470 1512 1575 1680 1715 1764 1800 1890 1960 2058 2100 2160 2205 2352 2401 2450 2520 2646 2700 2744 2800 2940 3024 3087 3150 3430 3528 3600 3675 3780 3920 4116 4200 4410 4725 4802 4900 5040 5145 5292 5400 5488 5880 6174 6300 6615 6860 7056 7203 7350 7560 8232 8400 8575 8820 9261 9450 9604 9800 10290 10584 10800 11025 11760 12005 12348 12600 13230 13720 14406 14700 15120 15435 16464 16807 17150 17640 18522 18900 19208 19600 20580 21168 21609 22050 24010 24696 25200 25725 26460 27440 28812 29400 30870 33075 33614 34300 35280 36015 37044 37800 38416 41160 43218 44100 46305 48020 49392 50421 51450 52920 57624 58800 60025 61740 64827 66150 67228 68600 72030 74088 75600 77175 82320 84035 86436 88200 92610 96040 100842 102900 105840 108045 115248 117649 120050 123480 129654 132300 134456 137200 144060 148176 151263 154350 168070 172872 176400 180075 185220 192080 201684 205800 216090 231525 235298 240100 246960 252105 259308 264600 268912 288120 302526 308700 324135 336140 345744 352947 360150 370440 403368 411600 420175 432180 453789 463050 470596 480200 504210 518616 529200 540225 576240 588245 605052 617400 648270 672280 705894 720300 740880 756315 806736 823543 840350 864360 907578 926100 941192 960400 1008420 1037232 1058841 1080450 1176490 1210104 1234800 1260525 1296540 1344560 1411788 1440600 1512630 1620675 1647086 1680700 1728720 1764735 1815156 1852200 1882384 2016840 2117682 2160900 2268945 2352980 2420208 2470629 2521050 2593080 2823576 2881200 2941225 3025260 3176523 3241350 3294172 3361400 3529470 3630312 3704400 3781575 4033680 4117715 4235364 4321800 4537890 4705960 4941258 5042100 5186160 5294205 5647152 5764801 5882450 6050520 6353046 6482700 6588344 6722800 7058940 7260624 7411887 7563150 8235430 8470728 8643600 8823675 9075780 9411920 9882516 10084200 10588410 11344725 11529602 11764900 12101040 12353145 12706092 12965400 13176688 14117880 14823774 15126300 15882615 16470860 16941456 17294403 17647350 18151560 19765032 20168400 20588575 21176820 22235661 22689450 23059204 23529800 24706290 25412184 25930800 26471025 28235760 28824005 29647548 30252600 31765230 32941720 34588806 35294700 36303120 37059435 39530064 40353607 41177150 42353640 44471322 45378900 46118408 47059600 49412580 50824368 51883209 52942050 57648010 59295096 60505200 61765725 63530460 65883440 69177612 70589400 74118870 79413075 80707214 82354300 84707280 86472015 88942644 90757800 92236816 98825160 103766418 105884100 111178305 115296020 118590192 121060821 123531450 127060920 138355224 141178800 144120025 148237740 155649627 158826150 161414428 164708600 172944030 177885288 181515600 185297175 197650320 201768035 207532836 211768200 222356610 230592040 242121642 247062900 254121840 259416045 276710448 282475249 288240050 296475480 311299254 317652300 322828856 329417200 345888060 355770576 363182463 370594350 403536070 415065672 423536400 432360075 444713220 461184080 484243284 494125800 518832090 555891525 564950498 576480100 592950960 605304105 622598508 635304600 645657712 691776120 726364926 741188700 778248135 807072140 830131344 847425747 864720150 889426440 968486568 988251600 1008840175 1037664180 1089547389 1111783050 1129900996 1152960200 1210608210 1245197016 1270609200 1297080225 1383552240 1412376245 1452729852 1482377400 1556496270 1614144280 1694851494 1729440300 1778852880 1815912315 1936973136 1977326743 2017680350 2075328360 2179094778 2223566100 2259801992 2305920400 2421216420 2490394032 2542277241 2594160450 2824752490 2905459704 2964754800 3026520525 3112992540 3228288560 3389702988 3458880600 3631824630 3891240675 3954653486 4035360700 4150656720 4237128735 4358189556 4447132200 4519603984 4842432840 5084554482 5188320900 5447736945 5649504980 5810919408 5931980229 6053041050 6225985080 6779405976 6917761200 7061881225 7263649260 7626831723 7782481350 7909306972 8070721400 8474257470 8716379112 8894264400 9079561575 9684865680 9886633715 10169108964 10376641800 10895473890 11299009960 11863960458 12106082100 12451970160 12711386205 13558811952 14123762450 14527298520 15253663446 15564962700 15818613944 16141442800 16948514940 17432758224 17795940687 18159123150 19773267430 20338217928 20753283600 21185643675 21790947780 22598019920 23727920916 24212164200 25422772410 27238684725 28247524900 29054597040 29659901145 30507326892 31129925400 31637227888 33897029880 35591881374 36318246300 38134158615 39546534860 40676435856 42371287350 43581895560 47455841832 48424328400 49433168575 50845544820 53387822061 54477369450 56495049800 59319802290 61014653784 62259850800 63556931025 67794059760 71183762748 72636492600 76268317230 79093069720 84742574700 87163791120 88979703435 94911683664 98866337150 101691089640 106775644122 108954738900 112990099600 118639604580 122029307568 127113862050 142367525496 145272985200 148299505725 152536634460 158186139440 169485149400 177959406870 190670793075 197732674300 203382179280 213551288244 217909477800 237279209160 254227724100 266939110305 284735050992 296599011450 305073268920 338970298800 355918813740 381341586150 395465348600 427102576488 435818955600 444898517175 474558418320 508455448200 533878220610 593198022900 610146537840 711837627480 762683172300 790930697200 854205152976 889797034350 1016910896400 1067756441220 1186396045800 1334695551525 1423675254960 1525366344600 1779594068700 2135512882440 2372792091600 2669391103050 3050732689200 3559188137400 4271025764880 5338782206100 7118376274800 10677564412200 21355128824400
• Sum of all divisors σ(n): 88676513328000
• Sum of proper divisors (its aliquot sum) s(n): 67321384503600
• 21355128824400 is an abundant number, because the sum of its proper divisors (67321384503600) is greater than itself. Its abundance is 45966255679200

Bases of 21355128824400

• Binary: 100110110110000100000110111100010001001010000₂
• Hexadecimal: 0x136C20DE2250
• Base-36: 7KIESBUC0

Squares and roots of 21355128824400

• 21355128824400 squared (21355128824400²) is 456041527106719726035360000
• 21355128824400 cubed (21355128824400³) is 9738825560640104356389787469630784000000
• The square root of 21355128824400 is 4621160.9823073681
• The cube root of 21355128824400 is 27743.8928526933

Scales and comparisons

• 21,355,128,824,400 seconds is equal to 679,027 years, 2 weeks, 21 hours.
• To count from 1 to 21,355,128,824,400 would take you about one million, six hundred ninety-seven thousand, five hundred sixty-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 21355128824400 cubic inches would be around 2312 feet tall.

Recreational maths with 21355128824400

• 21355128824400 backwards is 00442882155312
• 21355128824400 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21355128824400's digits is 45
• More coming soon!