40872865920

Names of 40872865920

• Cardinal: 40872865920 can be written as Forty billion, eight hundred seventy-two million, eight hundred sixty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 4.087286592 × 10¹⁰

Factors of 40872865920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 21287961

Divisors of 40872865920

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 320 384 480 640 960 1920 21287951 42575902 63863853 85151804 106439755 127727706 170303608 212879510 255455412 319319265 340607216 425759020 510910824 638638530 681214432 851518040 1021821648 1277277060 1362428864 1703036080 2043643296 2554554120 2724857728 3406072160 4087286592 5109108240 6812144320 8174573184 10218216480 13624288640 20436432960 40872865920
• Sum of all divisors σ(n): 130282266240
• Sum of proper divisors (its aliquot sum) s(n): 89409400320
• 40872865920 is an abundant number, because the sum of its proper divisors (89409400320) is greater than itself. Its abundance is 48536534400

Bases of 40872865920

• Binary: 100110000100001101100111000010000000₂
• Hexadecimal: 0x984367080
• Base-36: IRYND6O

Squares and roots of 40872865920

• 40872865920 squared (40872865920²) is 1670591168514297446400
• 40872865920 cubed (40872865920³) is 68281848837821005129705586688000
• The square root of 40872865920 is 202170.3883361755
• The cube root of 40872865920 is 3444.6494368953

Scales and comparisons

• 40,872,865,920 seconds is equal to 1,299 years, 32 weeks, 5 days, 13 hours, 52 minutes.
• To count from 1 to 40,872,865,920 would take you about two thousand, five hundred ninety-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 40872865920 cubic inches would be around 287.1 feet tall.

Recreational maths with 40872865920

• 40872865920 backwards is 02956827804
• The number of decimal digits it has is: 11
• The sum of 40872865920's digits is 51
• More coming soon!