121807994940

Names of 121807994940

• Cardinal: 121807994940 can be written as One hundred twenty-one billion, eight hundred seven million, nine hundred ninety-four thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.2180799494 × 10¹¹

Factors of 121807994940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 686

Divisors of 121807994940

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 23 27 30 36 45 46 54 60 69 90 92 108 115 135 138 180 207 230 270 276 345 414 460 529 540 621 653 690 828 1035 1058 1242 1306 1380 1587 1959 2070 2116 2484 2612 2645 3105 3174 3265 3918 4140 4761 5290 5877 6210 6348 6530 7836 7935 9522 9795 10580 11754 12420 13060 14283 15019 15870 17631 19044 19590 23508 23805 28566 29385 30038 31740 35262 39180 45057 47610 57132 58770 60076 70524 71415 75095 88155 90114 95220 117540 135171 142830 150190 176310 180228 225285 270342 285660 300380 345437 352620 405513 426409 450570 540684 675855 690874 811026 852818 901140 1036311 1279227 1351710 1381748 1622052 1705636 1727185 2027565 2072622 2132045 2558454 2703420 3108933 3454370 3837681 4055130 4145244 4264090 5116908 5181555 6217866 6396135 6908740 7675362 8110260 8528180 9326799 9807407 10363110 11513043 12435732 12792270 15350724 15544665 18653598 19188405 19614814 20726220 23026086 25584540 29422221 31089330 37307196 38376810 39229628 46052172 46633995 49037035 57565215 58844442 62178660 76753620 88266663 93267990 98074070 115130430 117688884 147111105 176533326 186535980 196148140 225570361 230260860 264799989 294222210 353066652 441333315 451140722 529599978 588444420 676711083 882666630 902281444 1059199956 1127851805 1323999945 1353422166 1765333260 2030133249 2255703610 2647999890 2706844332 3383555415 4060266498 4511407220 5295999780 6090399747 6767110830 8120532996 10150666245 12180799494 13534221660 20301332490 24361598988 30451998735 40602664980 60903997470 121807994940
• Sum of all divisors σ(n): 396758609520
• Sum of proper divisors (its aliquot sum) s(n): 274950614580
• 121807994940 is an abundant number, because the sum of its proper divisors (274950614580) is greater than itself. Its abundance is 153142619640

Bases of 121807994940

• Binary: 1110001011100010100101000000000111100₂
• Hexadecimal: 0x1C5C52803C
• Base-36: 1JYHC2F0

Squares and roots of 121807994940

• 121807994940 squared (121807994940²) is 14837187631303065603600
• 121807994940 cubed (121807994940³) is 1807288075917594400649796845784000
• The square root of 121807994940 is 349010.0212601353
• The cube root of 121807994940 is 4957.0724320607

Scales and comparisons

• 121,807,994,940 seconds is equal to 3,873 years, 6 weeks, 18 hours, 9 minutes.
• To count from 1 to 121,807,994,940 would take you about seven thousand, seven hundred forty-six 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 121807994940 cubic inches would be around 413.1 feet tall.

Recreational maths with 121807994940

• 121807994940 backwards is 049499708121
• 121807994940 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 121807994940's digits is 54
• More coming soon!