642872249440

Names of 642872249440

• Cardinal: 642872249440 can be written as Six hundred forty-two billion, eight hundred seventy-two million, two hundred forty-nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 6.4287224944 × 10¹¹

Factors of 642872249440

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1101767

Divisors of 642872249440

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 80 160 3659 7318 14636 18295 29272 36590 58544 73180 117088 146360 292720 585440 1098101 2196202 4392404 5490505 8784808 10981010 17569616 21962020 35139232 43924040 87848080 175696160 4017951559 8035903118 16071806236 20089757795 32143612472 40179515590 64287224944 80359031180 128574449888 160718062360 321436124720 642872249440
• Sum of all divisors σ(n): 1519202154960
• Sum of proper divisors (its aliquot sum) s(n): 876329905520
• 642872249440 is an abundant number, because the sum of its proper divisors (876329905520) is greater than itself. Its abundance is 233457656080

Bases of 642872249440

• Binary: 1001010110101110001011000000110001100000₂
• Hexadecimal: 0x95AE2C0C60
• Base-36: 87BXJECG

Squares and roots of 642872249440

• 642872249440 squared (642872249440²) is 413284729100045580313600
• 642872249440 cubed (642872249440³) is 265689283455747329022734212624384000
• The square root of 642872249440 is 801793.1462914859
• The cube root of 642872249440 is 8630.6113428621

Scales and comparisons

• 642,872,249,440 seconds is equal to 20,441 years, 18 weeks, 1 day, 50 minutes, 40 seconds.
• To count from 1 to 642,872,249,440 would take you about forty thousand, eight hundred eighty-two 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 642872249440 cubic inches would be around 719.2 feet tall.

Recreational maths with 642872249440

• 642872249440 backwards is 044942278246
• The number of decimal digits it has is: 12
• The sum of 642872249440's digits is 52
• More coming soon!