28267216731

Names of 28267216731

• Cardinal: 28267216731 can be written as Twenty-eight billion, two hundred sixty-seven million, two hundred sixteen thousand, seven hundred thirty-one.

Scientific notation

• Scientific notation: 2.8267216731 × 10¹⁰

Factors of 28267216731

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2012

Divisors of 28267216731

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 9 13 19 27 31 39 57 73 93 117 171 219 247 279 351 403 513 589 657 741 837 949 1209 1387 1767 1873 1971 2223 2263 2847 3627 4161 5301 5619 6669 6789 7657 8541 10881 12483 15903 16857 18031 20367 22971 24349 25623 29419 35587 37449 42997 50571 54093 58063 61101 68913 73047 88257 106761 128991 136729 162279 174189 206739 219141 264771 320283 386973 410187 462631 486837 522567 558961 657423 754819 794313 960849 1103197 1160919 1230561 1387893 1567701 1676883 1777477 2264457 2597851 3309591 3691683 4163679 4238599 5030649 5332431 6793371 7793553 9928773 12491037 12715797 14341561 15091947 15997293 20380113 23380659 29786319 33772063 38147391 43024683 47991879 55101787 70141977 80533381 101316189 114442173 129074049 165305361 241600143 303948567 387222147 495916083 724800429 911845701 1046933953 1487748249 2174401287 3140801859 9422405577 28267216731
• Sum of all divisors σ(n): 49701478400
• Sum of proper divisors (its aliquot sum) s(n): 21434261669
• 28267216731 is a deficient number, because the sum of its proper divisors (21434261669) is less than itself. Its deficiency is 6832955062

Bases of 28267216731

• Binary: 11010010100110110110111111101011011₂
• Hexadecimal: 0x694DB7F5B
• Base-36: CZHKK0R

Squares and roots of 28267216731

• 28267216731 squared (28267216731²) is 799035541717326326361
• 28267216731 cubed (28267216731³) is 22586510833495655205098425545891
• The square root of 28267216731 is 168128.5720245075
• The cube root of 28267216731 is 3046.2182540687

Scales and comparisons

• 28,267,216,731 seconds is equal to 898 years, 42 weeks, 20 hours, 38 minutes, 51 seconds.
• To count from 1 to 28,267,216,731 would take you about one thousand, seven hundred ninety-seven 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 28267216731 cubic inches would be around 253.9 feet tall.

Recreational maths with 28267216731

• 28267216731 backwards is 13761276282
• The number of decimal digits it has is: 11
• The sum of 28267216731's digits is 45
• More coming soon!