121649378739

Names of 121649378739

• Cardinal: 121649378739 can be written as One hundred twenty-one billion, six hundred forty-nine million, three hundred seventy-eight thousand, seven hundred thirty-nine.

Scientific notation

• Scientific notation: 1.21649378739 × 10¹¹

Factors of 121649378739

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6540

Divisors of 121649378739

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 19 21 37 57 111 133 259 399 703 777 1741 2109 4733 4921 5223 12187 14199 14763 33079 33131 36561 64417 89927 99237 99393 175121 193251 231553 269781 450919 525363 629489 694659 1223923 1225847 1352757 1888467 3327299 3671769 3677541 8240153 8567461 9981897 23291093 24720459 25702383 57681071 69873279 156562907 173043213 304885661 469688721 914656983 1095940349 2134199627 3287821047 5792827559 6402598881 17378482677 40549792913 121649378739
• Sum of all divisors σ(n): 200557992960
• Sum of proper divisors (its aliquot sum) s(n): 78908614221
• 121649378739 is a deficient number, because the sum of its proper divisors (78908614221) is less than itself. Its deficiency is 42740764518

Bases of 121649378739

• Binary: 1110001010010110111100011010110110011₂
• Hexadecimal: 0x1C52DE35B3
• Base-36: 1JVUWDDF

Squares and roots of 121649378739

• 121649378739 squared (121649378739²) is 14798571347584665230121
• 121649378739 cubed (121649378739³) is 1800237010658440553447514119797419
• The square root of 121649378739 is 348782.7099198011
• The cube root of 121649378739 is 4954.9198269587

Scales and comparisons

• 121,649,378,739 seconds is equal to 3,868 years, 3 weeks, 5 days, 22 hours, 5 minutes, 39 seconds.
• To count from 1 to 121,649,378,739 would take you about seven thousand, seven hundred thirty-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 121649378739 cubic inches would be around 412.9 feet tall.

Recreational maths with 121649378739

• 121649378739 backwards is 937873946121
• The number of decimal digits it has is: 12
• The sum of 121649378739's digits is 60
• More coming soon!