40405420398

Names of 40405420398

• Cardinal: 40405420398 can be written as Forty billion, four hundred five million, four hundred twenty thousand, three hundred ninety-eight.

Scientific notation

• Scientific notation: 4.0405420398 × 10¹⁰

Factors of 40405420398

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1022

Divisors of 40405420398

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 14 21 31 42 62 93 186 217 223 317 434 439 446 634 651 669 878 951 1302 1317 1338 1561 1902 2219 2634 3073 3122 4438 4683 6146 6657 6913 9219 9366 9827 13314 13609 13826 18438 19654 20739 27218 29481 40827 41478 48391 58962 68789 70691 81654 95263 96782 97897 137578 139163 141382 145173 190526 195794 206367 212073 278326 285789 290346 293691 412734 417489 424146 494837 571578 587382 685279 834978 974141 989674 1370558 1484511 1948282 2055837 2191421 2922423 2969022 3034807 4111674 4314053 4382842 5844846 6069614 6574263 8628106 9104421 12942159 13148526 15339947 18208842 21243649 25884318 30198371 30679894 31033349 42487298 46019841 60396742 62066698 63730947 90595113 92039682 93100047 127461894 181190226 186200094 217233443 434466886 651700329 962033819 1303400658 1924067638 2886101457 5772202914 6734236733 13468473466 20202710199 40405420398
• Sum of all divisors σ(n): 96282869760
• Sum of proper divisors (its aliquot sum) s(n): 55877449362
• 40405420398 is an abundant number, because the sum of its proper divisors (55877449362) is greater than itself. Its abundance is 15472028964

Bases of 40405420398

• Binary: 100101101000010110011100100101101110₂
• Hexadecimal: 0x96859C96E
• Base-36: IK8CDWU

Squares and roots of 40405420398

• 40405420398 squared (40405420398²) is 1632597997539114478404
• 40405420398 cubed (40405420398³) is 65965808431500889948562112084792
• The square root of 40405420398 is 201010.9957141649
• The cube root of 40405420398 is 3431.4673941963

Scales and comparisons

• 40,405,420,398 seconds is equal to 1,284 years, 39 weeks, 6 days, 7 hours, 53 minutes, 18 seconds.
• To count from 1 to 40,405,420,398 would take you about two thousand, five hundred sixty-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 40405420398 cubic inches would be around 286 feet tall.

Recreational maths with 40405420398

• 40405420398 backwards is 89302450404
• The number of decimal digits it has is: 11
• The sum of 40405420398's digits is 39
• More coming soon!