646485138464

Names of 646485138464

• Cardinal: 646485138464 can be written as Six hundred forty-six billion, four hundred eighty-five million, one hundred thirty-eight thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 6.46485138464 × 10¹¹

Factors of 646485138464

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4072

Divisors of 646485138464

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 61 88 121 122 176 242 244 352 484 488 671 877 968 976 1342 1754 1936 1952 2684 3121 3508 3872 5368 6242 7016 7381 9647 10736 12484 14032 14762 19294 21472 24968 28064 29524 34331 38588 49936 53497 59048 68662 77176 99872 106117 106994 118096 137324 154352 190381 212234 213988 236192 274648 308704 377641 380762 424468 427976 549296 588467 755282 761524 848936 855952 1098592 1176934 1510564 1523048 1697872 1711904 2094191 2353868 2737117 3021128 3046096 3395744 4188382 4707736 5474234 6042256 6092192 6473137 8376764 9415472 10948468 12084512 12946274 16753528 18830944 21896936 23036101 25892548 30108287 33507056 43793872 46072202 51785096 60216574 67014112 87587744 92144404 103570192 120433148 166964137 184288808 207140384 240866296 331191157 333928274 368577616 481732592 662382314 667856548 737155232 963465184 1324764628 1335713096 1836605507 2649529256 2671426192 3673211014 5299058512 5342852384 7346422028 10598117024 14692844056 20202660577 29385688112 40405321154 58771376224 80810642308 161621284616 323242569232 646485138464
• Sum of all divisors σ(n): 1424004279768
• Sum of proper divisors (its aliquot sum) s(n): 777519141304
• 646485138464 is an abundant number, because the sum of its proper divisors (777519141304) is greater than itself. Its abundance is 131034002840

Bases of 646485138464

• Binary: 1001011010000101100001000101110000100000₂
• Hexadecimal: 0x9685845C20
• Base-36: 88ZOK5CW

Squares and roots of 646485138464

• 646485138464 squared (646485138464²) is 417943034254817252279296
• 646485138464 cubed (646485138464³) is 270193960370289826398796694160441344
• The square root of 646485138464 is 804042.9954075839
• The cube root of 646485138464 is 8646.7489245439

Scales and comparisons

• 646,485,138,464 seconds is equal to 20,556 years, 11 weeks, 5 days, 21 hours, 7 minutes, 44 seconds.
• To count from 1 to 646,485,138,464 would take you about forty-one thousand, one hundred twelve 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 646485138464 cubic inches would be around 720.6 feet tall.

Recreational maths with 646485138464

• 646485138464 backwards is 464831584646
• The number of decimal digits it has is: 12
• The sum of 646485138464's digits is 59
• More coming soon!