121221001728

Names of 121221001728

• Cardinal: 121221001728 can be written as One hundred twenty-one billion, two hundred twenty-one million, one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.21221001728 × 10¹¹

Factors of 121221001728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 251

Divisors of 121221001728

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 32 36 46 48 64 69 72 92 96 128 138 144 184 192 207 223 256 276 288 368 384 414 446 512 529 552 576 669 736 768 828 892 1058 1104 1152 1338 1472 1536 1587 1656 1784 2007 2116 2208 2304 2676 2944 3174 3312 3568 4014 4232 4416 4608 4761 5129 5352 5888 6348 6624 7136 8028 8464 8832 9522 10258 10704 11776 12696 13248 14272 15387 16056 16928 17664 19044 20516 21408 25392 26496 28544 30774 32112 33856 35328 38088 41032 42816 46161 49729 50784 52992 57088 61548 64224 67712 76176 82064 85632 92322 99458 101568 105984 114176 117967 123096 128448 135424 149187 152352 164128 171264 184644 198916 203136 235934 246192 256896 270848 298374 304704 328256 342528 353901 369288 397832 406272 447561 471868 492384 513792 596748 609408 656512 707802 738576 795664 812544 895122 943736 984768 1027584 1061703 1143767 1193496 1218816 1313024 1415604 1477152 1591328 1790244 1887472 1969536 2123406 2287534 2386992 2437632 2626048 2831208 2954304 3182656 3431301 3580488 3774944 3939072 4246812 4575068 4773984 5662416 5908608 6365312 6862602 7160976 7549888 7878144 8493624 9150136 9547968 10293903 11324832 11817216 12730624 13725204 14321952 15099776 16987248 18300272 19095936 20587806 22649664 23634432 25461248 26306641 27450408 28643904 30199552 33974496 36600544 38191872 41175612 45299328 52613282 54900816 57287808 60399104 67948992 73201088 76383744 78919923 82351224 90598656 105226564 109801632 114575616 135897984 146402176 157839846 164702448 181197312 210453128 219603264 229151232 236759769 271795968 292804352 315679692 329404896 420906256 439206528 473519538 543591936 585608704 631359384 658809792 841812512 878413056 947039076 1262718768 1317619584 1683625024 1756826112 1894078152 2525437536 2635239168 3367250048 3788156304 5050875072 5270478336 6734500096 7576312608 10101750144 13469000192 15152625216 20203500288 30305250432 40407000576 60610500864 121221001728
• Sum of all divisors σ(n): 367371695691
• Sum of proper divisors (its aliquot sum) s(n): 246150693963
• 121221001728 is an abundant number, because the sum of its proper divisors (246150693963) is greater than itself. Its abundance is 124929692235

Bases of 121221001728

• Binary: 1110000111001010101011011001000000000₂
• Hexadecimal: 0x1C3955B200
• Base-36: 1JORURK0

Squares and roots of 121221001728

• 121221001728 squared (121221001728²) is 14694531259939778985984
• 121221001728 cubed (121221001728³) is 1781285799253309965635904551780352
• The square root of 121221001728 is 348168.0653477569
• The cube root of 121221001728 is 4949.0968896637

Scales and comparisons

• 121,221,001,728 seconds is equal to 3,854 years, 23 weeks, 3 days, 20 hours, 28 minutes, 48 seconds.
• To count from 1 to 121,221,001,728 would take you about seven thousand, seven hundred 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 121221001728 cubic inches would be around 412.4 feet tall.

Recreational maths with 121221001728

• 121221001728 backwards is 827100122121
• The number of decimal digits it has is: 12
• The sum of 121221001728's digits is 27
• More coming soon!