121145262478721

Names of 121145262478721

• Cardinal: 121145262478721 can be written as One hundred twenty-one trillion, one hundred forty-five billion, two hundred sixty-two million, four hundred seventy-eight thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 1.21145262478721 × 10¹⁴

Factors of 121145262478721

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 51714

Divisors of 121145262478721

• Number of divisors d(n): 64
• Complete list of divisors:
  1 13 17 41 47 221 533 611 697 799 1927 6277 9061 10387 25051 32759 45319 81601 106709 257357 295019 425867 589147 770423 1387217 1858079 2129993 3345641 3835247 4375069 5015323 10015499 12095779 24155027 27689909 31587343 36209881 56875897 65199199 87329713 157245127 205628243 284467363 410635459 470728453 1135286269 1484605121 2673167159 3698075719 4835945171 11663161883 13369966061 19299866573 62867287223 151621104479 173809558793 198273752011 227289423037 548168608501 2577558776143 2954762499481 7126191910513 9318866344517 121145262478721
• Sum of all divisors σ(n): 144544736286720
• Sum of proper divisors (its aliquot sum) s(n): 23399473807999
• 121145262478721 is a deficient number, because the sum of its proper divisors (23399473807999) is less than itself. Its deficiency is 97745788670722

Bases of 121145262478721

• Binary: 11011100010111001010100010101100001010110000001₂
• Hexadecimal: 0x6E2E54561581
• Base-36: 16XXD5EGSH

Squares and roots of 121145262478721

• 121145262478721 squared (121145262478721²) is 14676174621038206168977795841
• 121145262478721 cubed (121145262478721³) is 1777949026649217189108862444759674744799361
• The square root of 121145262478721 is 11006600.8594261743
• The cube root of 121145262478721 is 49480.6593800779

Scales and comparisons

• 121,145,262,478,721 seconds is equal to 3,852,044 years, 32 weeks, 1 day, 15 hours, 38 minutes, 41 seconds.
• To count from 1 to 121,145,262,478,721 would take you about nine million, six hundred thirty thousand, one hundred eleven 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 121145262478721 cubic inches would be around 4123.4 feet tall.

Recreational maths with 121145262478721

• 121145262478721 backwards is 127874262541121
• The number of decimal digits it has is: 15
• The sum of 121145262478721's digits is 53
• More coming soon!