21005250328125

Names of 21005250328125

• Cardinal: 21005250328125 can be written as Twenty-one trillion, five billion, two hundred fifty million, three hundred twenty-eight thousand, one hundred twenty-five.

Scientific notation

• Scientific notation: 2.1005250328125 × 10¹³

Factors of 21005250328125

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 142

Divisors of 21005250328125

• Number of divisors d(n): 504
• Complete list of divisors:
  1 3 5 7 9 15 21 25 27 35 45 49 63 75 81 105 125 127 135 147 175 189 225 243 245 315 343 375 381 405 441 525 567 625 635 675 735 875 889 945 1029 1125 1143 1215 1225 1323 1575 1701 1715 1875 1905 2025 2205 2625 2667 2835 3087 3125 3175 3375 3429 3675 3969 4375 4445 4725 5145 5625 5715 6075 6125 6223 6615 7875 8001 8505 8575 9261 9375 9525 10125 10287 11025 11907 13125 13335 14175 15435 15625 15875 16129 16875 17145 18375 18669 19845 21875 22225 23625 24003 25725 27783 28125 28575 30375 30625 30861 31115 33075 39375 40005 42525 42875 43561 46305 46875 47625 48387 50625 51435 55125 56007 59535 65625 66675 70875 72009 77175 79375 80645 83349 84375 85725 91875 93345 99225 109375 111125 112903 118125 120015 128625 130683 138915 140625 142875 145161 151875 153125 154305 155575 165375 168021 196875 200025 212625 214375 216027 217805 231525 238125 241935 253125 257175 275625 280035 297675 328125 333375 338709 354375 360045 385875 392049 396875 403225 416745 421875 428625 435483 459375 466725 496125 504063 555625 564515 590625 600075 643125 653415 694575 714375 725805 759375 765625 771525 777875 790321 826875 840105 984375 1000125 1016127 1063125 1071875 1080135 1089025 1157625 1176147 1190625 1209675 1265625 1285875 1306449 1378125 1400175 1488375 1512189 1666875 1693545 1771875 1800225 1929375 1960245 1984375 2016125 2083725 2143125 2177415 2296875 2333625 2370963 2480625 2520315 2778125 2822575 2953125 3000375 3048381 3215625 3267075 3472875 3528441 3571875 3629025 3796875 3857625 3889375 3919347 3951605 4134375 4200525 5000625 5080635 5315625 5359375 5400675 5445125 5532247 5788125 5880735 5953125 6048375 6429375 6532245 6890625 7000875 7112889 7441875 7560945 8334375 8467725 8859375 9001125 9145143 9646875 9801225 10080625 10418625 10585323 10715625 10887075 11668125 11854815 12403125 12601575 13890625 14112875 15001875 15241905 16078125 16335375 16596741 17364375 17642205 17859375 18145125 19288125 19446875 19596735 19758025 20671875 21002625 21338667 25003125 25403175 26578125 27003375 27225625 27435429 27661235 28940625 29403675 30241875 32146875 32661225 35004375 35564445 37209375 37804725 41671875 42338625 45005625 45725715 48234375 49006125 49790223 50403125 52093125 52926615 53578125 54435375 58340625 59274075 62015625 63007875 64016001 70564375 75009375 76209525 81676875 82983705 86821875 88211025 90725625 96440625 97234375 97983675 98790125 105013125 106693335 125015625 127015875 135016875 136128125 137177145 138306175 144703125 147018375 149370669 151209375 160734375 163306125 175021875 177822225 186046875 189023625 192048003 211693125 225028125 228628575 245030625 248951115 252015625 260465625 264633075 272176875 291703125 296370375 315039375 320080005 352821875 375046875 381047625 408384375 414918525 434109375 441055125 448112007 453628125 482203125 489918375 493950625 525065625 533466675 635079375 675084375 680640625 685885725 691530875 735091875 746853345 756046875 816530625 875109375 889111125 945118125 960240015 1058465625 1125140625 1143142875 1225153125 1244755575 1302328125 1323165375 1344336021 1360884375 1481851875 1575196875 1600400025 1764109375 1905238125 2041921875 2074592625 2205275625 2240560035 2268140625 2449591875 2469753125 2625328125 2667333375 3175396875 3375421875 3429428625 3457654375 3675459375 3734266725 4082653125 4445555625 4725590625 4801200075 5292328125 5715714375 6125765625 6223777875 6615826875 6721680105 6804421875 7409259375 7875984375 8002000125 9526190625 10372963125 11026378125 11202800175 12247959375 12348765625 13336666875 15876984375 17147143125 17288271875 18377296875 18671333625 20413265625 22227778125 23627953125 24006000375 28578571875 31118889375 33079134375 33608400525 37046296875 40010000625 47630953125 51864815625 55131890625 56014000875 61239796875 66683334375 85735715625 86441359375 93356668125 111138890625 120030001875 142892859375 155594446875 165395671875 168042002625 200050003125 259324078125 280070004375 333416671875 428678578125 466783340625 600150009375 777972234375 840210013125 1000250015625 1400350021875 2333916703125 3000750046875 4201050065625 7001750109375 21005250328125
• Sum of all divisors σ(n): 46230251995200
• Sum of proper divisors (its aliquot sum) s(n): 25225001667075
• 21005250328125 is an abundant number, because the sum of its proper divisors (25225001667075) is greater than itself. Its abundance is 4219751338950

Bases of 21005250328125

• Binary: 100110001101010101010011110111111011000111101₂
• Hexadecimal: 0x131AAA7BF63D
• Base-36: 7G1OFPET9

Squares and roots of 21005250328125

• 21005250328125 squared (21005250328125²) is 441220541347195420166015625
• 21005250328125 cubed (21005250328125³) is 9267947920908666728990696949005126953125
• The square root of 21005250328125 is 4583148.5169177095
• The cube root of 21005250328125 is 27591.5408193961

Scales and comparisons

• 21,005,250,328,125 seconds is equal to 667,901 years, 51 weeks, 2 days, 5 hours, 48 minutes, 45 seconds.
• To count from 1 to 21,005,250,328,125 would take you about one million, six hundred sixty-nine thousand, seven hundred fifty-four 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 21005250328125 cubic inches would be around 2299.3 feet tall.

Recreational maths with 21005250328125

• 21005250328125 backwards is 52182305250012
• The number of decimal digits it has is: 14
• The sum of 21005250328125's digits is 36
• More coming soon!