40721207385

Names of 40721207385

• Cardinal: 40721207385 can be written as Forty billion, seven hundred twenty-one million, two hundred seven thousand, three hundred eighty-five.

Scientific notation

• Scientific notation: 4.0721207385 × 10¹⁰

Factors of 40721207385

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3427

Divisors of 40721207385

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 15 29 31 87 93 145 155 435 465 841 899 961 2523 2697 2883 3359 4205 4495 4805 10077 12615 13485 14415 16795 26071 27869 50385 78213 83607 97411 104129 130355 139345 292233 312387 391065 418035 487055 520645 808201 1461165 1561935 2424603 2824919 3019741 3227999 4041005 8474757 9059223 9683997 12123015 14124595 15098705 16139995 42373785 45296115 48419985 87572489 93611971 262717467 280835913 437862445 468059855 1313587335 1404179565 2714747159 8144241477 13573735795 40721207385
• Sum of all divisors σ(n): 69745777920
• Sum of proper divisors (its aliquot sum) s(n): 29024570535
• 40721207385 is a deficient number, because the sum of its proper divisors (29024570535) is less than itself. Its deficiency is 11696636850

Bases of 40721207385

• Binary: 100101111011001011000101000001011001₂
• Hexadecimal: 0x97B2C5059
• Base-36: IPGCSPL

Squares and roots of 40721207385

• 40721207385 squared (40721207385²) is 1658216730892178538225
• 40721207385 cubed (40721207385³) is 67524587387937138329506374791625
• The square root of 40721207385 is 201794.9637255599
• The cube root of 40721207385 is 3440.3837058751

Scales and comparisons

• 40,721,207,385 seconds is equal to 1,294 years, 42 weeks, 6 hours, 29 minutes, 45 seconds.
• To count from 1 to 40,721,207,385 would take you about two thousand, five hundred eighty-nine 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 40721207385 cubic inches would be around 286.7 feet tall.

Recreational maths with 40721207385

• 40721207385 backwards is 58370212704
• The number of decimal digits it has is: 11
• The sum of 40721207385's digits is 39
• More coming soon!