40388217940

Names of 40388217940

• Cardinal: 40388217940 can be written as Forty billion, three hundred eighty-eight million, two hundred seventeen thousand, nine hundred forty.

Scientific notation

• Scientific notation: 4.038821794 × 10¹⁰

Factors of 40388217940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 131187

Divisors of 40388217940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 10 14 20 28 31 35 62 70 71 124 140 142 155 217 284 310 355 434 497 620 710 868 994 1085 1420 1988 2170 2201 2485 4340 4402 4970 8804 9940 11005 15407 22010 30814 44020 61628 77035 131071 154070 262142 308140 524284 655355 917497 1310710 1834994 2621420 3669988 4063201 4587485 8126402 9174970 9306041 16252804 18349940 18612082 20316005 28442407 37224164 40632010 46530205 56884814 65142287 81264020 93060410 113769628 130284574 142212035 186120820 260569148 284424070 288487271 325711435 568848140 576974542 651422870 1153949084 1302845740 1442436355 2019410897 2884872710 4038821794 5769745420 8077643588 10097054485 20194108970 40388217940
• Sum of all divisors σ(n): 101468602368
• Sum of proper divisors (its aliquot sum) s(n): 61080384428
• 40388217940 is an abundant number, because the sum of its proper divisors (61080384428) is greater than itself. Its abundance is 20692166488

Bases of 40388217940

• Binary: 100101100111010100110100110001010100₂
• Hexadecimal: 0x967534C54
• Base-36: IJY3OES

Squares and roots of 40388217940

• 40388217940 squared (40388217940²) is 1631208148368937843600
• 40388217940 cubed (40388217940³) is 65881590201828517153630434184000
• The square root of 40388217940 is 200968.2013155315
• The cube root of 40388217940 is 3430.9803468947

Scales and comparisons

• 40,388,217,940 seconds is equal to 1,284 years, 11 weeks, 3 days, 5 hours, 25 minutes, 40 seconds.
• To count from 1 to 40,388,217,940 would take you about two thousand, five hundred sixty-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 40388217940 cubic inches would be around 285.9 feet tall.

Recreational maths with 40388217940

• 40388217940 backwards is 04971288304
• The number of decimal digits it has is: 11
• The sum of 40388217940's digits is 46
• More coming soon!