640418195073

Names of 640418195073

• Cardinal: 640418195073 can be written as Six hundred forty billion, four hundred eighteen million, one hundred ninety-five thousand and seventy-three.

Scientific notation

• Scientific notation: 6.40418195073 × 10¹¹

Factors of 640418195073

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 11946

Divisors of 640418195073

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 23 29 69 87 89 267 313 667 939 2001 2047 2581 6141 7199 7743 9077 11489 21597 27231 27857 34467 59363 83571 178089 208771 264247 333181 626313 640711 792741 807853 999543 1022521 1922133 2423559 3067563 3596057 7663163 10788171 18580619 22989489 23517983 29653109 55741857 70553949 82709311 88959327 104285653 248127933 312856959 320049073 682021507 960147219 2046064521 2398570019 7195710057 7361128679 9281423117 22083386037 27844269351 213472731691 640418195073
• Sum of all divisors σ(n): 935157312000
• Sum of proper divisors (its aliquot sum) s(n): 294739116927
• 640418195073 is a deficient number, because the sum of its proper divisors (294739116927) is less than itself. Its deficiency is 345679078146

Bases of 640418195073

• Binary: 1001010100011011111001100010011010000001₂
• Hexadecimal: 0x951BE62681
• Base-36: 867CGHVL

Squares and roots of 640418195073

• 640418195073 squared (640418195073²) is 410135464580559081475329
• 640418195073 cubed (640418195073³) is 262658213962107967963668948158854017
• The square root of 640418195073 is 800261.3292375185
• The cube root of 640418195073 is 8619.6153805497

Scales and comparisons

• 640,418,195,073 seconds is equal to 20,363 years, 16 weeks, 3 days, 15 hours, 4 minutes, 33 seconds.
• To count from 1 to 640,418,195,073 would take you about forty thousand, seven hundred twenty-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 640418195073 cubic inches would be around 718.3 feet tall.

Recreational maths with 640418195073

• 640418195073 backwards is 370591814046
• The number of decimal digits it has is: 12
• The sum of 640418195073's digits is 48
• More coming soon!