12820997440

Names of 12820997440

• Cardinal: 12820997440 can be written as Twelve billion, eight hundred twenty million, nine hundred ninety-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.282099744 × 10¹⁰

Factors of 12820997440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 683

Divisors of 12820997440

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 29 32 34 40 58 64 68 80 85 116 136 145 160 170 181 232 272 290 320 340 362 449 464 493 544 580 680 724 898 905 928 986 1088 1160 1360 1448 1796 1810 1856 1972 2245 2320 2465 2720 2896 3077 3592 3620 3944 4490 4640 4930 5249 5440 5792 6154 7184 7240 7633 7888 8980 9280 9860 10498 11584 12308 13021 14368 14480 15266 15385 15776 17960 19720 20996 24616 26042 26245 28736 28960 30532 30770 31552 35920 38165 39440 41992 49232 52084 52490 57920 61064 61540 65105 71840 76330 78880 81269 83984 89233 98464 104168 104980 122128 123080 130210 143680 152660 157760 162538 167968 178466 196928 208336 209960 221357 244256 246160 260420 305320 325076 335936 356932 406345 416672 419920 442714 446165 488512 492320 520840 610640 650152 713864 812690 833344 839840 885428 892330 984640 1041680 1106785 1221280 1300304 1381573 1427728 1625380 1679680 1770856 1784660 2083360 2213570 2356801 2442560 2600608 2763146 2855456 3250760 3541712 3569320 4166720 4427140 4713602 5201216 5526292 5710912 6501520 6907865 7083424 7138640 8854280 9427204 11052584 11784005 13003040 13815730 14166848 14277280 17708560 18854408 22105168 23568010 26006080 27631460 28554560 35417120 37708816 40065617 44210336 47136020 55262920 70834240 75417632 80131234 88420672 94272040 110525840 150835264 160262468 188544080 200328085 221051680 320524936 377088160 400656170 442103360 641049872 754176320 801312340 1282099744 1602624680 2564199488 3205249360 6410498720 12820997440
• Sum of all divisors σ(n): 33700212000
• Sum of proper divisors (its aliquot sum) s(n): 20879214560
• 12820997440 is an abundant number, because the sum of its proper divisors (20879214560) is greater than itself. Its abundance is 8058217120

Bases of 12820997440

• Binary: 1011111100001100001110010101000000₂
• Hexadecimal: 0x2FC30E540
• Base-36: 5W1AGXS

Squares and roots of 12820997440

• 12820997440 squared (12820997440²) is 164377975356486553600
• 12820997440 cubed (12820997440³) is 2107489601237897191100022784000
• The square root of 12820997440 is 113229.8434159475
• The cube root of 12820997440 is 2340.4925935963

Scales and comparisons

• 12,820,997,440 seconds is equal to 407 years, 34 weeks, 5 days, 4 hours, 10 minutes, 40 seconds.
• To count from 1 to 12,820,997,440 would take you about eight hundred fifteen 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 12820997440 cubic inches would be around 195 feet tall.

Recreational maths with 12820997440

• 12820997440 backwards is 04479902821
• The number of decimal digits it has is: 11
• The sum of 12820997440's digits is 46
• More coming soon!