21211908900

Names of 21211908900

• Cardinal: 21211908900 can be written as Twenty-one billion, two hundred eleven million, nine hundred eight thousand, nine hundred.

Scientific notation

• Scientific notation: 2.12119089 × 10¹⁰

Factors of 21211908900

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 288

Divisors of 21211908900

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 13 14 15 20 21 25 26 28 30 35 39 42 49 50 52 60 65 70 75 78 84 91 98 100 101 105 130 140 147 150 156 157 175 182 195 196 202 210 245 260 273 294 300 303 314 325 343 350 364 390 404 420 455 471 490 505 525 546 588 606 628 637 650 686 700 707 735 780 785 910 942 975 980 1010 1029 1050 1092 1099 1212 1225 1274 1300 1313 1365 1372 1414 1470 1515 1570 1715 1820 1884 1911 1950 2020 2041 2058 2100 2121 2198 2275 2355 2450 2525 2548 2626 2730 2828 2940 3030 3140 3185 3297 3430 3535 3675 3822 3900 3925 3939 4082 4116 4242 4396 4459 4550 4710 4900 4949 5050 5145 5252 5460 5495 6060 6123 6370 6565 6594 6825 6860 7070 7350 7575 7644 7693 7850 7878 8164 8484 8575 8918 9100 9191 9420 9555 9898 10100 10205 10290 10605 10990 11775 12246 12740 13130 13188 13377 13650 14140 14287 14700 14847 15150 15386 15700 15756 15857 15925 16485 17150 17675 17836 18382 19110 19695 19796 20410 20580 21210 21980 22295 23079 23550 24492 24745 25725 26260 26754 27300 27475 27573 28574 29694 30300 30615 30772 31714 31850 32825 32970 34300 34643 35350 36764 38220 38465 39390 40820 42420 42861 44590 45955 46158 47100 47571 47775 49490 51025 51450 53025 53508 53851 54950 55146 57148 59388 61230 63428 63700 64337 65650 65940 66885 69286 70700 71435 74235 76930 78780 79285 82425 85722 89180 91910 92316 95142 95550 98475 98980 100009 102050 102900 103929 106050 107702 109900 110292 110999 111475 115395 122460 123725 128674 131300 133770 137865 138572 142870 148470 153075 153860 158570 161553 164850 171444 173215 183820 190284 191100 192325 193011 196950 200018 204100 206141 207858 212100 214305 215404 221998 222950 229775 230790 237855 247450 257348 267540 269255 275730 285740 296940 300027 306150 317140 321685 323106 329700 332997 334425 346430 357175 371175 384650 386022 393900 396425 400036 412282 415716 428610 443996 445900 450359 459550 461580 475710 494900 500045 519645 538510 551460 554995 576975 600054 612300 618423 643370 646212 665994 668850 689325 692860 700063 714350 742350 769300 772044 776993 792850 807765 824564 857220 866075 900718 919100 951420 965055 1000090 1030705 1039290 1071525 1077020 1109990 1153950 1189275 1200108 1236846 1286740 1331988 1337700 1346275 1351077 1378650 1400126 1428700 1442987 1484700 1500135 1553986 1585700 1608425 1615530 1664985 1732150 1801436 1930110 2000180 2061410 2078580 2100189 2143050 2219980 2251795 2307900 2330979 2378550 2473692 2500225 2598225 2692550 2702154 2757300 2774975 2800252 2885974 3000270 3092115 3107972 3216850 3231060 3329970 3464300 3500315 3860220 3884965 4038825 4122820 4200378 4286100 4328961 4503590 4661958 4757100 4825275 5000450 5153525 5196450 5385100 5404308 5438951 5549950 5771948 6000540 6184230 6433700 6659940 6755385 7000630 7214935 7500675 7769930 8077650 8324925 8400756 8657922 9007180 9323916 9650550 10000900 10100909 10307050 10392900 10500945 10877902 11099900 11258975 11654895 12368460 13510770 14001260 14429870 15001350 15460575 15539860 16155300 16316853 16649850 17315844 17501575 19301100 19424825 20201818 20614100 21001890 21644805 21755804 22517950 23309790 27021540 27194755 28859740 30002700 30302727 30921150 32633706 33299700 33776925 35003150 36074675 38849650 40403636 42003780 43289610 45035900 46619580 50504545 52504725 54389510 58274475 60605454 61842300 65267412 67553850 70006300 70706363 72149350 77699300 81584265 86579220 101009090 105009450 108224025 108779020 116548950 121210908 135107700 135973775 141412726 144298700 151513635 163168530 202018180 210018900 212119089 216448050 233097900 252522725 271947550 282825452 303027270 326337060 353531815 407921325 424238178 432896100 505045450 543895100 606054540 707063630 757568175 815842650 848476356 1010090900 1060595445 1414127260 1515136350 1631685300 1767659075 2121190890 3030272700 3535318150 4242381780 5302977225 7070636300 10605954450 21211908900
• Sum of all divisors σ(n): 78336652800
• Sum of proper divisors (its aliquot sum) s(n): 57124743900
• 21211908900 is an abundant number, because the sum of its proper divisors (57124743900) is greater than itself. Its abundance is 35912835000

Bases of 21211908900

• Binary: 10011110000010101000000101100100100₂
• Hexadecimal: 0x4F0540B24
• Base-36: 9QT0TNO

Squares and roots of 21211908900

• 21211908900 squared (21211908900²) is 449945079181899210000
• 21211908900 cubed (21211908900³) is 9544194029609732571501969000000
• The square root of 21211908900 is 145643.0873745815
• The cube root of 21211908900 is 2768.1731449781

Scales and comparisons

• 21,211,908,900 seconds is equal to 674 years, 24 weeks, 4 days, 4 hours, 55 minutes.
• To count from 1 to 21,211,908,900 would take you about one thousand, three hundred forty-eight 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 21211908900 cubic inches would be around 230.7 feet tall.

Recreational maths with 21211908900

• 21211908900 backwards is 00980911212
• The number of decimal digits it has is: 11
• The sum of 21211908900's digits is 33
• More coming soon!