31920839645805

Names of 31920839645805

• Cardinal: 31920839645805 can be written as Thirty-one trillion, nine hundred twenty billion, eight hundred thirty-nine million, six hundred forty-five thousand, eight hundred five.

Scientific notation

• Scientific notation: 3.1920839645805 × 10¹³

Factors of 31920839645805

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7628065

Divisors of 31920839645805

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 9 11 15 27 33 45 55 99 135 165 297 495 1485 2819 8457 14095 25371 31009 42285 76113 93027 126855 155045 279081 380565 465135 837243 1395405 4186215 7625227 22875681 38126135 68627043 83877497 114378405 205881129 251632491 343135215 419387485 754897473 1029405645 1258162455 2264692419 3774487365 11323462095 21495514913 64486544739 107477574565 193459634217 236450664043 322432723695 580378902651 709351992129 967298171085 1182253320215 2128055976387 2901894513255 3546759960645 6384167929161 10640279881935 31920839645805
• Sum of all divisors σ(n): 61929051724800
• Sum of proper divisors (its aliquot sum) s(n): 30008212078995
• 31920839645805 is a deficient number, because the sum of its proper divisors (30008212078995) is less than itself. Its deficiency is 1912627566810

Bases of 31920839645805

• Binary: 111010000100000100110010011101101101001101101₂
• Hexadecimal: 0x1D08264EDA6D
• Base-36: BBC8BR4H9

Squares and roots of 31920839645805

• 31920839645805 squared (31920839645805²) is 1018940003693196277854098025
• 31920839645805 cubed (31920839645805³) is 32525420466586472865864550765808750035125
• The square root of 31920839645805 is 5649853.0640898087
• The cube root of 31920839645805 is 31721.8204166285

Scales and comparisons

• 31,920,839,645,805 seconds is equal to 1,014,983 years, 50 weeks, 13 hours, 36 minutes, 45 seconds.
• To count from 1 to 31,920,839,645,805 would take you about two million, five hundred thirty-seven thousand, four hundred fifty-nine 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 31920839645805 cubic inches would be around 2643.5 feet tall.

Recreational maths with 31920839645805

• 31920839645805 backwards is 50854693802913
• The number of decimal digits it has is: 14
• The sum of 31920839645805's digits is 63
• More coming soon!