64639956800470513

Names of 64639956800470513

• Cardinal: 64639956800470513 can be written as Sixty-four quadrillion, six hundred thirty-nine trillion, nine hundred fifty-six billion, eight hundred million, four hundred seventy thousand, five hundred thirteen.

Scientific notation

• Scientific notation: 6.4639956800470513 × 10¹⁶

Factors of 64639956800470513

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 582172497

Divisors of 64639956800470513

• Number of divisors d(n): 72
• Complete list of divisors:
  1 7 11 49 61 77 121 307 427 539 671 847 2149 2989 3377 4697 5929 7381 15043 18727 23639 32879 37147 51667 131089 165473 205997 260029 361669 917623 1441979 1820203 2265967 10093853 15861769 111032383 582172111 4075204777 6403893221 28526433439 35512498771 44827252547 70442825431 178726838077 248587491397 313790767829 390637486481 493099778017 1251087866539 1740112439779 1965995218847 2734462405367 3451698446119 4297012351291 8757615065773 10902337122697 13761966531929 19141236837569 21625947407317 30079086459037 76316359858879 96333765723503 119925708349667 151381631851219 210553605213259 534214519012153 839479958447669 1059671422958533 1319182791846337 5876359709133683 9234279542924359 64639956800470513
• Sum of all divisors σ(n): 84279179731350912
• Sum of proper divisors (its aliquot sum) s(n): 19639222930880399
• 64639956800470513 is a deficient number, because the sum of its proper divisors (19639222930880399) is less than itself. Its deficiency is 45000733869590114

Bases of 64639956800470513

• Binary: 11100101101001011011001010111111011000110111110111110001₂
• Hexadecimal: 0xE5A5B2BF637DF1
• Base-36: HOGYA7GRU9D

Squares and roots of 64639956800470513

• 64639956800470513 squared (64639956800470513²) is 4178324015166694119987898182483169
• 64639956800470513 cubed (64639956800470513³) is 270086683838743608482179881788988426824633903295697
• The square root of 64639956800470513 is 254243892.3562776817
• The cube root of 64639956800470513 is 401328.8240128335

Scales and comparisons

• 64,639,956,800,470,513 seconds is equal to 2,055,350,681 years, 38 weeks, 3 days, 14 hours, 15 minutes, 13 seconds.
• To count from 1 to 64,639,956,800,470,513 would take you about six billion, one hundred sixty-six million, fifty-two thousand and forty-five 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 64639956800470513 cubic inches would be around 33444.1 feet tall.

Recreational maths with 64639956800470513

• 64639956800470513 backwards is 31507400865993646
• The number of decimal digits it has is: 17
• The sum of 64639956800470513's digits is 76
• More coming soon!