12749938305

Names of 12749938305

• Cardinal: 12749938305 can be written as Twelve billion, seven hundred forty-nine million, nine hundred thirty-eight thousand, three hundred five.

Scientific notation

• Scientific notation: 1.2749938305 × 10¹⁰

Factors of 12749938305

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 651

Divisors of 12749938305

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 13 15 29 39 41 65 87 123 127 145 195 205 377 381 433 435 533 615 635 1131 1189 1299 1599 1651 1885 1905 2165 2665 3567 3683 4953 5207 5629 5655 5945 6495 7995 8255 11049 12557 15457 15621 16887 17753 17835 18415 24765 26035 28145 37671 46371 47879 53259 54991 55245 62785 67691 77285 78105 84435 88765 143637 151003 163241 164973 188355 203073 230789 231855 239395 266295 274955 338455 453009 489723 514837 692367 714883 718185 755015 816205 824865 1015365 1153945 1544511 1594739 1963039 2144649 2254631 2265045 2448615 2574185 3461835 3574415 4784217 5889117 6692881 6763893 7722555 7973695 9815195 10723245 11273155 20078643 20731607 23921085 29310203 29445585 33464405 33819465 62194821 65384299 87930609 100393215 103658035 146551015 196152897 310974105 326921495 439653045 849995887 980764485 2549987661 4249979435 12749938305
• Sum of all divisors σ(n): 23518494720
• Sum of proper divisors (its aliquot sum) s(n): 10768556415
• 12749938305 is a deficient number, because the sum of its proper divisors (10768556415) is less than itself. Its deficiency is 1981381890

Bases of 12749938305

• Binary: 1011110111111101001001111010000001₂
• Hexadecimal: 0x2F7F49E81
• Base-36: 5UUZFCX

Squares and roots of 12749938305

• 12749938305 squared (12749938305²) is 162560926781306273025
• 12749938305 cubed (12749938305³) is 2072641787265277208378235722625
• The square root of 12749938305 is 112915.6247159797
• The cube root of 12749938305 is 2336.1605960759

Scales and comparisons

• 12,749,938,305 seconds is equal to 405 years, 21 weeks, 1 day, 17 hours, 31 minutes, 45 seconds.
• To count from 1 to 12,749,938,305 would take you about eight hundred ten 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 12749938305 cubic inches would be around 194.7 feet tall.

Recreational maths with 12749938305

• 12749938305 backwards is 50383994721
• The number of decimal digits it has is: 11
• The sum of 12749938305's digits is 51
• More coming soon!