40728957787840

Names of 40728957787840

• Cardinal: 40728957787840 can be written as Forty trillion, seven hundred twenty-eight billion, nine hundred fifty-seven million, seven hundred eighty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 4.072895778784 × 10¹³

Factors of 40728957787840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2597510077

Divisors of 40728957787840

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 140 160 196 224 245 280 320 392 448 490 560 784 980 1120 1568 1960 2240 3136 3920 7840 15680 2597510063 5195020126 10390040252 12987550315 18182570441 20780080504 25975100630 36365140882 41560161008 51950201260 72730281764 83120322016 90912852205 103900402520 127277993087 145460563528 166240644032 181825704410 207800805040 254555986174 290921127056 363651408820 415601610080 509111972348 581842254112 636389965435 727302817640 831203220160 1018223944696 1163684508224 1272779930870 1454605635280 2036447889392 2545559861740 2909211270560 4072895778784 5091119723480 5818422541120 8145791557568 10182239446960 20364478893920 40728957787840
• Sum of all divisors σ(n): 112820252119776
• Sum of proper divisors (its aliquot sum) s(n): 72091294331936
• 40728957787840 is an abundant number, because the sum of its proper divisors (72091294331936) is greater than itself. Its abundance is 31362336544096

Bases of 40728957787840

• Binary: 1001010000101011110011000011111001111011000000₂
• Hexadecimal: 0x250AF30F9EC0
• Base-36: EFQMHVJR4

Squares and roots of 40728957787840

• 40728957787840 squared (40728957787840²) is 1658848002483652586451865600
• 40728957787840 cubed (40728957787840³) is 67563150269599389673257670302416994304000
• The square root of 40728957787840 is 6381924.3013247971
• The cube root of 40728957787840 is 34406.0195962103

Scales and comparisons

• 40,728,957,787,840 seconds is equal to 1,295,054 years, 45 weeks, 3 days, 9 hours, 30 minutes, 40 seconds.
• To count from 1 to 40,728,957,787,840 would take you about three million, two hundred thirty-seven thousand, six hundred thirty-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 40728957787840 cubic inches would be around 2867.2 feet tall.

Recreational maths with 40728957787840

• 40728957787840 backwards is 04878775982704
• The number of decimal digits it has is: 14
• The sum of 40728957787840's digits is 76
• More coming soon!