405038940382465818

Names of 405038940382465818

• Cardinal: 405038940382465818 can be written as Four hundred five quadrillion, thirty-eight trillion, nine hundred forty billion, three hundred eighty-two million, four hundred sixty-five thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 4.05038940382465818 × 10¹⁷

Factors of 405038940382465818

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 472073357089150

Divisors of 405038940382465818

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 11 13 22 26 33 39 66 78 143 286 429 858 472073357089121 944146714178242 1416220071267363 2832440142534726 5192806927980331 6136953642158573 10385613855960662 12273907284317146 15578420783940993 18410860926475719 31156841567881986 36821721852951438 67506490063744303 135012980127488606 202519470191232909 405038940382465818
• Sum of all divisors σ(n): 951699887891669952
• Sum of proper divisors (its aliquot sum) s(n): 546660947509204134
• 405038940382465818 is an abundant number, because the sum of its proper divisors (546660947509204134) is greater than itself. Its abundance is 141622007126738316

Bases of 405038940382465818

• Binary: 10110011110111111001100010100110001101100101000111100011010₂
• Hexadecimal: 0x59EFCC531B28F1A
• Base-36: 32S6BKGC6OT6

Squares and roots of 405038940382465818

• 405038940382465818 squared (405038940382465818²) is 164056543226150699164185941938409124
• 405038940382465818 cubed (405038940382465818³) is 66449288431130279472962846032737069458862711229323432
• The square root of 405038940382465818 is 636426696.7864137439
• The cube root of 405038940382465818 is 739887.3339444941

Scales and comparisons

• 405,038,940,382,465,818 seconds is equal to 12,878,985,436 years, 23 weeks, 6 days, 3 hours, 10 minutes, 18 seconds.
• To count from 1 to 405,038,940,382,465,818 would take you about thirty-eight billion, six hundred thirty-six million, nine hundred fifty-six thousand, three hundred 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 405038940382465818 cubic inches would be around 61657.3 feet tall.

Recreational maths with 405038940382465818

• 405038940382465818 backwards is 818564283049830504
• 405038940382465818 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 405038940382465818's digits is 78
• More coming soon!