72345343902

Names of 72345343902

• Cardinal: 72345343902 can be written as Seventy-two billion, three hundred forty-five million, three hundred forty-three thousand, nine hundred two.

Scientific notation

• Scientific notation: 7.2345343902 × 10¹⁰

Factors of 72345343902

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1082

Divisors of 72345343902

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 13 26 39 78 169 307 338 507 614 757 921 1014 1514 1842 2271 3991 4542 7982 9841 11973 19682 23946 29523 51883 59046 94249 103766 127933 155649 188498 232399 255866 282747 311298 383799 464798 565494 697197 767598 1225237 1394394 2450474 3021187 3675711 6042374 7351422 9063561 15928081 18127122 31856162 39275431 47784243 71346493 78550862 95568486 117826293 142692986 214039479 235652586 428078958 927504409 1855008818 2782513227 5565026454 12057557317 24115114634 36172671951 72345343902
• Sum of all divisors σ(n): 157396556376
• Sum of proper divisors (its aliquot sum) s(n): 85051212474
• 72345343902 is an abundant number, because the sum of its proper divisors (85051212474) is greater than itself. Its abundance is 12705868572

Bases of 72345343902

• Binary: 1000011011000000111100101011110011110₂
• Hexadecimal: 0x10D81E579E
• Base-36: X8GJSM6

Squares and roots of 72345343902

• 72345343902 squared (72345343902²) is 5233848784298648585604
• 72345343902 cubed (72345343902³) is 378644590231150349799367266386808
• The square root of 72345343902 is 268970.8978718701
• The cube root of 72345343902 is 4166.8083758765

Scales and comparisons

• 72,345,343,902 seconds is equal to 2,300 years, 18 weeks, 4 days, 8 hours, 51 minutes, 42 seconds.
• To count from 1 to 72,345,343,902 would take you about four thousand, six hundred 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 72345343902 cubic inches would be around 347.2 feet tall.

Recreational maths with 72345343902

• 72345343902 backwards is 20934354327
• The number of decimal digits it has is: 11
• The sum of 72345343902's digits is 42
• More coming soon!