72040421440

Names of 72040421440

• Cardinal: 72040421440 can be written as Seventy-two billion, forty million, four hundred twenty-one thousand, four hundred forty.

Scientific notation

• Scientific notation: 7.204042144 × 10¹⁰

Factors of 72040421440

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 17317429

Divisors of 72040421440

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 208 260 320 416 520 832 1040 2080 4160 17317409 34634818 69269636 86587045 138539272 173174090 225126317 277078544 346348180 450252634 554157088 692696360 900505268 1108314176 1125631585 1385392720 1801010536 2251263170 2770785440 3602021072 4502526340 5541570880 7204042144 9005052680 14408084288 18010105360 36020210720 72040421440
• Sum of all divisors σ(n): 184742129880
• Sum of proper divisors (its aliquot sum) s(n): 112701708440
• 72040421440 is an abundant number, because the sum of its proper divisors (112701708440) is greater than itself. Its abundance is 40661287000

Bases of 72040421440

• Binary: 1000011000101111100011001100001000000₂
• Hexadecimal: 0x10C5F19840
• Base-36: X3F08XS

Squares and roots of 72040421440

• 72040421440 squared (72040421440²) is 5189822321252811673600
• 72040421440 cubed (72040421440³) is 373876987221771621751095721984000
• The square root of 72040421440 is 268403.4676378083
• The cube root of 72040421440 is 4160.9460188255

Scales and comparisons

• 72,040,421,440 seconds is equal to 2,290 years, 34 weeks, 3 days, 4 hours, 10 minutes, 40 seconds.
• To count from 1 to 72,040,421,440 would take you about four thousand, five hundred eighty-one 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 72040421440 cubic inches would be around 346.7 feet tall.

Recreational maths with 72040421440

• 72040421440 backwards is 04412404027
• The number of decimal digits it has is: 11
• The sum of 72040421440's digits is 28
• More coming soon!