402009361242

Names of 402009361242

• Cardinal: 402009361242 can be written as Four hundred two billion, nine million, three hundred sixty-one thousand, two hundred forty-two.

Scientific notation

• Scientific notation: 4.02009361242 × 10¹¹

Factors of 402009361242

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 78430

Divisors of 402009361242

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 6 139 278 417 834 6737 13474 20211 40422 71549 143098 214647 429294 936443 1872886 2809329 5618658 9945311 19890622 29835933 59671866 482025613 964051226 1446076839 2892153678 67001560207 134003120414 201004680621 402009361242
• Sum of all divisors σ(n): 809934552000
• Sum of proper divisors (its aliquot sum) s(n): 407925190758
• 402009361242 is an abundant number, because the sum of its proper divisors (407925190758) is greater than itself. Its abundance is 5915829516

Bases of 402009361242

• Binary: 101110110011001101000000000101101011010₂
• Hexadecimal: 0x5D99A00B5A
• Base-36: 54OHZSD6

Squares and roots of 402009361242

• 402009361242 squared (402009361242²) is 161611526526200851782564
• 402009361242 cubed (402009361242³) is 64969346548142543602104870712984488
• The square root of 402009361242 is 634042.0816018445
• The cube root of 402009361242 is 7380.3799793705

Scales and comparisons

• 402,009,361,242 seconds is equal to 12,782 years, 34 weeks, 3 hours, 42 seconds.
• To count from 1 to 402,009,361,242 would take you about twenty-five thousand, five hundred sixty-five 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 402009361242 cubic inches would be around 615 feet tall.

Recreational maths with 402009361242

• 402009361242 backwards is 242163900204
• The number of decimal digits it has is: 12
• The sum of 402009361242's digits is 33
• More coming soon!