72315217664

Names of 72315217664

• Cardinal: 72315217664 can be written as Seventy-two billion, three hundred fifteen million, two hundred seventeen thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 7.2315217664 × 10¹⁰

Factors of 72315217664

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 6339

Divisors of 72315217664

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 16 32 43 64 86 128 172 256 344 688 1321 1376 2642 2752 4973 5284 5504 9946 10568 11008 19892 21136 39784 42272 56803 79568 84544 113606 159136 169088 213839 227212 318272 338176 427678 454424 636544 855356 908848 1273088 1710712 1817696 3421424 3635392 6569333 6842848 7270784 13138666 13685696 14541568 26277332 27371392 52554664 54742784 105109328 210218656 282481319 420437312 564962638 840874624 1129925276 1681749248 2259850552 4519701104 9039402208 18078804416 36157608832 72315217664
• Sum of all divisors σ(n): 147846419952
• Sum of proper divisors (its aliquot sum) s(n): 75531202288
• 72315217664 is an abundant number, because the sum of its proper divisors (75531202288) is greater than itself. Its abundance is 3215984624

Bases of 72315217664

• Binary: 1000011010110010100101010011100000000₂
• Hexadecimal: 0x10D652A700
• Base-36: X7YM328

Squares and roots of 72315217664

• 72315217664 squared (72315217664²) is 5229490705791697616896
• 72315217664 cubed (72315217664³) is 378171758661191598609904324050944
• The square root of 72315217664 is 268914.8892568057
• The cube root of 72315217664 is 4166.2299111469

Scales and comparisons

• 72,315,217,664 seconds is equal to 2,299 years, 20 weeks, 5 days, 16 hours, 27 minutes, 44 seconds.
• To count from 1 to 72,315,217,664 would take you about four thousand, five hundred ninety-eight 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 72315217664 cubic inches would be around 347.2 feet tall.

Recreational maths with 72315217664

• 72315217664 backwards is 46671251327
• The number of decimal digits it has is: 11
• The sum of 72315217664's digits is 44
• More coming soon!