3900420825

Names of 3900420825

• Cardinal: 3900420825 can be written as Three billion, nine hundred million, four hundred twenty thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 3.900420825 × 10⁹

Factors of 3900420825

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 340

Divisors of 3900420825

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 7 15 21 25 35 49 61 75 105 127 137 147 175 183 245 305 381 411 427 525 635 685 735 889 915 959 1225 1281 1525 1905 2055 2135 2667 2877 2989 3175 3425 3675 4445 4575 4795 6223 6405 6713 7747 8357 8967 9525 10275 10675 13335 14385 14945 17399 18669 20139 22225 23241 23975 25071 31115 32025 33565 38735 41785 44835 52197 54229 58499 66675 71925 74725 86995 93345 100695 116205 121793 125355 155575 162687 167825 175497 193675 208925 224175 260985 271145 292495 365379 379603 409493 434975 466725 503475 581025 608965 626775 813435 852551 877485 1061339 1138809 1228479 1304925 1355725 1462475 1826895 1898015 2047465 2557653 3044825 3184017 4067175 4262755 4387425 5306695 5694045 6142395 7429373 9134475 9490075 10237325 12788265 15920085 21313775 22288119 26533475 28470225 30711975 37146865 52005611 63941325 79600425 111440595 156016833 185734325 260028055 557202975 780084165 1300140275 3900420825
• Sum of all divisors σ(n): 7740647424
• Sum of proper divisors (its aliquot sum) s(n): 3840226599
• 3900420825 is a deficient number, because the sum of its proper divisors (3840226599) is less than itself. Its deficiency is 60194226

Bases of 3900420825

• Binary: 11101000011110111011001011011001₂
• Hexadecimal: 0xE87BB2D9
• Base-36: 1SI7JYX

Squares and roots of 3900420825

• 3900420825 squared (3900420825²) is 15213282612093680625
• 3900420825 cubed (3900420825³) is 59338204316820588760649015625
• The square root of 3900420825 is 62453.3491896151
• The cube root of 3900420825 is 1574.1175303375

Scales and comparisons

• 3,900,420,825 seconds is equal to 124 years, 1 week, 18 hours, 13 minutes, 45 seconds.
• To count from 1 to 3,900,420,825 would take you about two hundred forty-eight 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 3900420825 cubic inches would be around 131.2 feet tall.

Recreational maths with 3900420825

• 3900420825 backwards is 5280240093
• The number of decimal digits it has is: 10
• The sum of 3900420825's digits is 33
• More coming soon!