121728954816

Names of 121728954816

• Cardinal: 121728954816 can be written as One hundred twenty-one billion, seven hundred twenty-eight million, nine hundred fifty-four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.21728954816 × 10¹¹

Factors of 121728954816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 71

Divisors of 121728954816

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 59 63 64 72 84 96 98 108 112 118 126 144 147 168 177 189 192 196 216 224 236 252 288 294 336 343 354 378 392 413 432 441 448 472 504 531 576 588 672 686 708 756 784 826 864 882 944 1008 1029 1062 1176 1239 1323 1344 1372 1416 1512 1568 1593 1652 1728 1764 1888 2016 2058 2124 2352 2478 2646 2744 2832 2891 3024 3087 3136 3186 3304 3481 3528 3717 3776 4032 4116 4248 4704 4956 5292 5488 5664 5782 6048 6174 6372 6608 6962 7056 7434 8232 8496 8673 9261 9408 9912 10443 10584 10976 11151 11328 11564 12096 12348 12744 13216 13924 14112 14868 16464 16992 17346 18522 19824 20237 20886 21168 21952 22302 23128 24367 24696 25488 26019 26432 27848 28224 29736 31329 32928 33984 34692 37044 39648 40474 41772 42336 44604 46256 48734 49392 50976 52038 55696 59472 60711 62658 65856 69384 73101 74088 78057 79296 80948 83544 84672 89208 92512 93987 97468 98784 101952 104076 111392 118944 121422 125316 138768 146202 148176 156114 161896 167088 170569 178416 182133 185024 187974 194936 197568 205379 208152 219303 222784 237888 242844 250632 277536 292404 296352 312228 323792 334176 341138 356832 364266 375948 389872 410758 416304 438606 485688 501264 511707 546399 555072 584808 592704 616137 624456 647584 657909 668352 682276 713664 728532 751896 779744 821516 832608 877212 971376 1002528 1023414 1092798 1169616 1193983 1232274 1248912 1295168 1315818 1364552 1437653 1457064 1503792 1535121 1559488 1643032 1665216 1754424 1848411 1942752 2005056 2046828 2185596 2339232 2387966 2464548 2497824 2631636 2729104 2875306 2914128 3007584 3070242 3286064 3508848 3581949 3696822 3885504 4093656 4312959 4371192 4605363 4678464 4775932 4929096 4995648 5263272 5458208 5545233 5750612 5828256 6015168 6140484 6572128 7017696 7163898 7393644 8187312 8625918 8742384 9210726 9551864 9858192 10063571 10526544 10745847 10916416 11090466 11501224 11656512 12280968 12938877 13144256 14035392 14327796 14787288 16374624 17251836 17484768 18421452 19103728 19716384 20127142 21053088 21491694 22180932 23002448 24561936 25877754 28655592 29574576 30190713 32237541 32749248 34503672 34969536 36842904 38207456 38816631 39432768 40254284 42106176 42983388 44361864 46004896 49123872 51755508 57311184 59149152 60381426 64475082 69007344 70444997 73685808 76414912 77633262 80508568 85966776 88723728 90572139 92009792 98247744 103511016 114622368 118298304 120762852 128950164 138014688 140889994 147371616 155266524 161017136 171933552 177447456 181144278 207022032 211334991 229244736 241525704 257900328 271716417 276029376 281779988 294743232 310533048 322034272 343867104 354894912 362288556 414044064 422669982 483051408 515800656 543432834 563559976 621066096 634004973 644068544 687734208 724577112 828088128 845339964 966102816 1031601312 1086865668 1127119952 1242132192 1268009946 1449154224 1690679928 1902014919 1932205632 2063202624 2173731336 2254239904 2484264384 2536019892 2898308448 3381359856 3804029838 4347462672 4508479808 5072039784 5796616896 6762719712 7608059676 8694925344 10144079568 13525439424 15216119352 17389850688 20288159136 30432238704 40576318272 60864477408 121728954816
• Sum of all divisors σ(n): 424525440000
• Sum of proper divisors (its aliquot sum) s(n): 302796485184
• 121728954816 is an abundant number, because the sum of its proper divisors (302796485184) is greater than itself. Its abundance is 181067530368

Bases of 121728954816

• Binary: 1110001010111100111000111000111000000₂
• Hexadecimal: 0x1C579C71C0
• Base-36: 1JX69YO0

Squares and roots of 121728954816

• 121728954816 squared (121728954816²) is 14817938440595769593856
• 121728954816 cubed (121728954816³) is 1803772158901551937011243695210496
• The square root of 121728954816 is 348896.7681363643
• 121728954816 is a perfect cube number. Its cube root is 4956

Scales and comparisons

• 121,728,954,816 seconds is equal to 3,870 years, 31 weeks, 2 days, 22 hours, 33 minutes, 36 seconds.
• To count from 1 to 121,728,954,816 would take you about seven thousand, seven hundred forty-one 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 121728954816 cubic inches would be around 413 feet tall.

Recreational maths with 121728954816

• 121728954816 backwards is 618459827121
• 121728954816 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 121728954816's digits is 54
• More coming soon!