18461661149309920

Names of 18461661149309920

• Cardinal: 18461661149309920 can be written as Eighteen quadrillion, four hundred sixty-one trillion, six hundred sixty-one billion, one hundred forty-nine million, three hundred nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.846166114930992 × 10¹⁶

Factors of 18461661149309920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 28190911059

Divisors of 18461661149309920

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 80 160 4093 8186 16372 20465 32744 40930 65488 81860 130976 163720 327440 654880 28190906959 56381813918 112763627836 140954534795 225527255672 281909069590 451054511344 563818139180 902109022688 1127636278360 2255272556720 4510545113440 115385382183187 230770764366374 461541528732748 576926910915935 923083057465496 1153853821831870 1846166114930992 2307707643663740 3692332229861984 4615415287327480 9230830574654960 18461661149309920
• Sum of all divisors σ(n): 43626330629622720
• Sum of proper divisors (its aliquot sum) s(n): 25164669480312800
• 18461661149309920 is an abundant number, because the sum of its proper divisors (25164669480312800) is greater than itself. Its abundance is 6703008331002880

Bases of 18461661149309920

• Binary: 1000001100101101100100001110010110001001010101111100000₂
• Hexadecimal: 0x4196C872C4ABE0
• Base-36: 51S421QC0KG

Squares and roots of 18461661149309920

• 18461661149309920 squared (18461661149309920²) is 340832932391939276247692210406400
• 18461661149309920 cubed (18461661149309920³) is 6292342106345639919476107602264453150802751488000
• The square root of 18461661149309920 is 135873695.5753758837
• The cube root of 18461661149309920 is 264295.7980668595

Scales and comparisons

• 18,461,661,149,309,920 seconds is equal to 587,023,718 years, 45 weeks, 5 days, 13 hours, 38 minutes, 40 seconds.
• To count from 1 to 18,461,661,149,309,920 would take you about one billion, seven hundred sixty-one million, seventy-one thousand, one hundred fifty-six 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 18461661149309920 cubic inches would be around 22024.6 feet tall.

Recreational maths with 18461661149309920

• 18461661149309920 backwards is 02990394116616481
• The number of decimal digits it has is: 17
• The sum of 18461661149309920's digits is 70
• More coming soon!