12851820990

Names of 12851820990

• Cardinal: 12851820990 can be written as Twelve billion, eight hundred fifty-one million, eight hundred twenty thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.285182099 × 10¹⁰

Factors of 12851820990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 518

Divisors of 12851820990

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 27 30 34 45 51 54 61 85 90 102 122 135 153 170 183 197 233 255 270 305 306 366 394 459 466 510 549 591 610 699 765 915 918 985 1037 1098 1165 1182 1398 1530 1647 1773 1830 1970 2074 2097 2295 2330 2745 2955 3111 3294 3349 3495 3546 3961 4194 4590 5185 5319 5490 5910 6222 6291 6698 6990 7922 8235 8865 9333 10047 10370 10485 10638 11883 12017 12582 14213 15555 16470 16745 17730 18666 19805 20094 20970 23766 24034 26595 27999 28426 30141 31110 31455 33490 35649 36051 39610 42639 45901 46665 50235 53190 55998 59415 60085 60282 62910 71065 71298 72102 85278 90423 91802 93330 100470 106947 108153 118830 120170 127917 137703 139995 142130 150705 178245 180255 180846 204289 213195 213894 216306 229505 241621 255834 275406 279990 301410 324459 356490 360510 383751 408578 413109 426390 452115 459010 483242 534735 540765 612867 639585 648918 688515 724863 767502 780317 826218 904230 1021445 1069470 1081530 1208105 1225734 1239327 1279170 1377030 1449726 1560634 1622295 1838601 1918755 2042890 2065545 2174589 2340951 2416210 2478654 2799961 3064335 3244590 3624315 3677202 3837510 3901585 4131090 4349178 4681902 5515803 5599922 6128670 6196635 6523767 7022853 7248630 7803170 8399883 9193005 10872945 11031606 11704755 12393270 13047534 13999805 14045706 16799766 18386010 21068559 21745890 23409510 25199649 27579015 27999610 32618835 35114265 41999415 42137118 47599337 50399298 55158030 65237670 70228530 75598947 83998830 95198674 105342795 125998245 142798011 151197894 210685590 237996685 251996490 285596022 377994735 428394033 475993370 713990055 755989470 856788066 1285182099 1427980110 2141970165 2570364198 4283940330 6425910495 12851820990
• Sum of all divisors σ(n): 37228688640
• Sum of proper divisors (its aliquot sum) s(n): 24376867650
• 12851820990 is an abundant number, because the sum of its proper divisors (24376867650) is greater than itself. Its abundance is 11525046660

Bases of 12851820990

• Binary: 1011111110000001110011100110111110₂
• Hexadecimal: 0x2FE0739BE
• Base-36: 5WJN4JI

Squares and roots of 12851820990

• 12851820990 squared (12851820990²) is 165169302759004580100
• 12851820990 cubed (12851820990³) is 2122726312101839974035316299000
• The square root of 12851820990 is 113365.8722455749
• The cube root of 12851820990 is 2342.3667211587

Scales and comparisons

• 12,851,820,990 seconds is equal to 408 years, 33 weeks, 4 days, 22 hours, 16 minutes, 30 seconds.
• To count from 1 to 12,851,820,990 would take you about eight hundred seventeen 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 12851820990 cubic inches would be around 195.2 feet tall.

Recreational maths with 12851820990

• 12851820990 backwards is 09902815821
• 12851820990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12851820990's digits is 45
• More coming soon!