21123894000

Names of 21123894000

• Cardinal: 21123894000 can be written as Twenty-one billion, one hundred twenty-three million, eight hundred ninety-four thousand.

Scientific notation

• Scientific notation: 2.1123894 × 10¹⁰

Factors of 21123894000

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 386

Divisors of 21123894000

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 17 20 22 24 25 30 33 34 40 44 48 50 51 55 60 66 67 68 75 80 85 88 100 102 110 120 125 132 134 136 150 165 170 176 187 200 201 204 220 240 250 255 264 268 272 275 281 300 330 335 340 374 375 400 402 408 425 440 500 510 528 536 550 561 562 600 660 670 680 737 748 750 804 816 825 843 850 880 935 1000 1005 1020 1072 1100 1122 1124 1139 1200 1275 1320 1340 1360 1375 1405 1474 1496 1500 1608 1650 1675 1686 1700 1870 2000 2010 2040 2125 2200 2211 2244 2248 2278 2550 2640 2680 2750 2805 2810 2948 2992 3000 3091 3216 3300 3350 3372 3400 3417 3685 3740 4020 4080 4125 4215 4250 4400 4422 4488 4496 4556 4675 4777 5025 5100 5360 5500 5610 5620 5695 5896 6000 6182 6375 6600 6700 6744 6800 6834 7025 7370 7480 8040 8250 8375 8430 8500 8844 8976 9112 9273 9350 9554 10050 10200 11000 11055 11220 11240 11390 11792 12364 12529 12750 13200 13400 13488 13668 14025 14050 14331 14740 14960 15455 16080 16500 16750 16860 17000 17085 17688 18224 18425 18546 18700 18827 19108 20100 20400 21075 22000 22110 22440 22480 22780 23375 23885 24728 25058 25125 25500 26800 27336 28050 28100 28475 28662 29480 30910 33000 33500 33720 34000 34170 35125 35376 36850 37092 37400 37587 37654 38216 40200 42150 44220 44880 45560 46365 46750 47770 49456 50116 50250 51000 52547 54672 55275 56100 56200 56481 56950 57324 58960 61820 62645 66000 67000 67440 68340 70125 70250 71655 73700 74184 74800 75174 75308 76432 77275 80400 84300 85425 88440 91120 92125 92730 93500 94135 95540 100232 100500 102000 105094 105375 110550 112200 112400 112962 113900 114648 119425 123640 125290 134000 136680 140250 140500 142375 143310 147400 148368 150348 150616 154550 157641 168600 170850 176880 184250 185460 187000 187935 188270 191080 200464 201000 207097 210188 210750 221100 224400 225924 227800 229296 231825 238850 247280 250580 262735 273360 276375 280500 281000 282405 284750 286620 294800 300696 301232 309100 313225 315282 320059 337200 341700 358275 368500 370920 374000 375870 376540 382160 386375 402000 414194 420376 421500 427125 442200 451848 455600 463650 470675 477700 501160 525470 552750 561000 562000 564810 569500 573240 597125 601392 618200 621291 626450 630564 640118 683400 716550 737000 741840 751740 753080 772750 788205 828388 840752 843000 854250 884400 903696 927300 939675 941350 955400 960177 1002320 1035485 1050940 1105500 1122000 1129620 1139000 1146480 1159125 1194250 1236400 1242582 1252900 1261128 1280236 1313675 1366800 1412025 1433100 1474000 1503480 1506160 1545500 1566125 1576410 1600295 1656776 1686000 1708500 1791375 1854600 1879350 1882700 1910800 1920354 2070970 2101880 2211000 2259240 2278000 2318250 2353375 2388500 2485164 2505800 2522256 2560472 2627350 2824050 2866200 3006960 3091000 3106455 3132250 3152820 3200590 3313552 3417000 3520649 3582750 3709200 3758700 3765400 3840708 3941025 4141940 4203760 4422000 4518480 4636500 4698375 4706750 4777000 4800885 4970328 5011600 5120944 5177425 5254700 5648100 5732400 6182000 6212910 6264500 6305640 6401180 6568375 6834000 7041298 7060125 7165500 7517400 7530800 7681416 7882050 8001475 8283880 9273000 9396750 9413500 9554000 9601770 9940656 10354850 10509400 10561947 11296200 12425820 12529000 12611280 12802360 13136750 14082596 14120250 14331000 15034800 15362832 15532275 15764100 16002950 16567760 17603245 18546000 18793500 18827000 19203540 19705125 20709700 21018800 21123894 22592400 24004425 24851640 25058000 25604720 25887125 26273500 28165192 28240500 28662000 31064550 31528200 32005900 35206490 37587000 37654000 38407080 39410250 40007375 41419400 42247788 48008850 49703280 51774250 52547000 52809735 56330384 56481000 62129100 63056400 64011800 70412980 75174000 76814160 77661375 78820500 80014750 82838800 84495576 88016225 96017700 103548500 105094000 105619470 112962000 120022125 124258200 128023600 140825960 155322750 157641000 160029500 168991152 176032450 192035400 207097000 211238940 240044250 248516400 264048675 281651920 310645500 315282000 320059000 352064900 384070800 414194000 422477880 440081125 480088500 528097350 621291000 640118000 704129800 844955760 880162250 960177000 1056194700 1242582000 1320243375 1408259600 1760324500 1920354000 2112389400 2640486750 3520649000 4224778800 5280973500 7041298000 10561947000 21123894000
• Sum of all divisors σ(n): 80123157504
• Sum of proper divisors (its aliquot sum) s(n): 58999263504
• 21123894000 is an abundant number, because the sum of its proper divisors (58999263504) is greater than itself. Its abundance is 37875369504

Bases of 21123894000

• Binary: 10011101011000101010000101011110000₂
• Hexadecimal: 0x4EB150AF0
• Base-36: 9PCMCXC

Squares and roots of 21123894000

• 21123894000 squared (21123894000²) is 446218897723236000000
• 21123894000 cubed (21123894000³) is 9425880696302478600984000000000
• The square root of 21123894000 is 145340.6137320191
• The cube root of 21123894000 is 2764.3391628027

Scales and comparisons

• 21,123,894,000 seconds is equal to 671 years, 35 weeks, 12 hours, 20 minutes.
• To count from 1 to 21,123,894,000 would take you about one thousand, three hundred forty-three 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 21123894000 cubic inches would be around 230.4 feet tall.

Recreational maths with 21123894000

• 21123894000 backwards is 00049832112
• 21123894000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21123894000's digits is 30
• More coming soon!