6440861431933388

Names of 6440861431933388

• Cardinal: 6440861431933388 can be written as Six quadrillion, four hundred forty trillion, eight hundred sixty-one billion, four hundred thirty-one million, nine hundred thirty-three thousand, three hundred eighty-eight.

Scientific notation

• Scientific notation: 6.440861431933388 × 10¹⁵

Factors of 6440861431933388

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 53420

Divisors of 6440861431933388

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 41 82 164 1487 1681 2974 3362 5948 6724 20563 31327 41126 60967 62654 82252 121934 125308 243868 843083 1284407 1686166 2499647 2568814 3372332 4999294 5137628 9998588 30577181 34566403 46583249 52660687 61154362 69132806 93166498 105321374 122308724 138265612 186332996 210642748 644177101 1253664421 1288354202 1909913209 2507328842 2576708404 3819826418 5014657684 7639652836 26411261141 51400241261 52822522282 78306441569 102800482522 105645044564 156612883138 205600965044 313225766276 957891349187 1082861706781 1915782698374 2165723413562 3831565396748 4331446827124 39273545316667 78547090633334 157094181266668 1610215357983347 3220430715966694 6440861431933388
• Sum of all divisors σ(n): 11561828258297856
• Sum of proper divisors (its aliquot sum) s(n): 5120966826364468
• 6440861431933388 is a deficient number, because the sum of its proper divisors (5120966826364468) is less than itself. Its deficiency is 1319894605568920

Bases of 6440861431933388

• Binary: 10110111000011110110111101001101100101010100111001100₂
• Hexadecimal: 0x16E1EDE9B2A9CC
• Base-36: 1RF3EW6GIX8

Squares and roots of 6440861431933388

• 6440861431933388 squared (6440861431933388²) is 41484695985367013300587669158544
• 6440861431933388 cubed (6440861431933388³) is 267197178387632253763808873728063197057019067072
• The square root of 6440861431933388 is 80254977.6146837387
• The cube root of 6440861431933388 is 186057.8444972417

Scales and comparisons

• 6,440,861,431,933,388 seconds is equal to 204,799,470 years, 33 weeks, 3 days, 1 hour, 3 minutes, 8 seconds.
• To count from 1 to 6,440,861,431,933,388 would take you about six hundred fourteen million, three hundred ninety-eight thousand, four hundred eleven 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 6440861431933388 cubic inches would be around 15504.8 feet tall.

Recreational maths with 6440861431933388

• 6440861431933388 backwards is 8833391341680446
• The number of decimal digits it has is: 16
• The sum of 6440861431933388's digits is 71
• More coming soon!