640424149184

Names of 640424149184

• Cardinal: 640424149184 can be written as Six hundred forty billion, four hundred twenty-four million, one hundred forty-nine thousand, one hundred eighty-four.

Scientific notation

• Scientific notation: 6.40424149184 × 10¹¹

Factors of 640424149184

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 390135

Divisors of 640424149184

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 8 16 32 61 64 122 244 421 488 842 976 1684 1952 3368 3904 6736 13472 25681 26944 51362 102724 205448 389651 410896 779302 821792 1558604 1643584 3117208 6234416 12468832 23768711 24937664 47537422 95074844 164043071 190149688 328086142 380299376 656172284 760598752 1312344568 1521197504 2624689136 5249378272 10006627331 10498756544 20013254662 40026509324 80053018648 160106037296 320212074592 640424149184
• Sum of all divisors σ(n): 1294746575856
• Sum of proper divisors (its aliquot sum) s(n): 654322426672
• 640424149184 is an abundant number, because the sum of its proper divisors (654322426672) is greater than itself. Its abundance is 13898277488

Bases of 640424149184

• Binary: 1001010100011100010000010000000011000000₂
• Hexadecimal: 0x951C4100C0
• Base-36: 867G043K

Squares and roots of 640424149184

• 640424149184 squared (640424149184²) is 410143090858050287865856
• 640424149184 cubed (640424149184³) is 262665540006462864123577107923861504
• The square root of 640424149184 is 800265.0493330319
• The cube root of 640424149184 is 8619.6420932967

Scales and comparisons

• 640,424,149,184 seconds is equal to 20,363 years, 26 weeks, 2 days, 12 hours, 59 minutes, 44 seconds.
• To count from 1 to 640,424,149,184 would take you about forty thousand, seven hundred twenty-seven 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 640424149184 cubic inches would be around 718.3 feet tall.

Recreational maths with 640424149184

• 640424149184 backwards is 481941424046
• The number of decimal digits it has is: 12
• The sum of 640424149184's digits is 47
• More coming soon!