7989012538

Names of 7989012538

• Cardinal: 7989012538 can be written as Seven billion, nine hundred eighty-nine million, twelve thousand, five hundred thirty-eight.

Scientific notation

• Scientific notation: 7.989012538 × 10⁹

Factors of 7989012538

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 242

Divisors of 7989012538

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 13 17 26 34 97 113 194 221 226 289 442 578 1261 1469 1649 1921 2522 2938 3298 3757 3842 7514 9409 10961 18818 21437 21922 24973 28033 32657 42874 49946 56066 65314 122317 142493 159953 186337 244634 284986 319906 364429 372674 424541 728858 849082 1063217 2079389 2126434 2422381 2719201 3167729 4158778 4844762 5438402 6335458 13821821 18074689 27643642 35349613 36149378 41180477 70699226 82360954 234970957 307269713 469941914 614539426 3994506269 7989012538
• Sum of all divisors σ(n): 13974491412
• Sum of proper divisors (its aliquot sum) s(n): 5985478874
• 7989012538 is a deficient number, because the sum of its proper divisors (5985478874) is less than itself. Its deficiency is 2003533664

Bases of 7989012538

• Binary: 111011100001011101010100000111010₂
• Hexadecimal: 0x1DC2EA83A
• Base-36: 3O4G9IY

Squares and roots of 7989012538

• 7989012538 squared (7989012538²) is 63824321332321201444
• 7989012538 cubed (7989012538³) is 509893303353254942979339704872
• The square root of 7989012538 is 89381.2762159951
• The cube root of 7989012538 is 1999.0839586647

Scales and comparisons

• 7,989,012,538 seconds is equal to 254 years, 1 week, 2 days, 10 hours, 8 minutes, 58 seconds.
• To count from 1 to 7,989,012,538 would take you about five hundred 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 7989012538 cubic inches would be around 166.6 feet tall.

Recreational maths with 7989012538

• 7989012538 backwards is 8352109897
• The number of decimal digits it has is: 10
• The sum of 7989012538's digits is 52
• More coming soon!