402138555672

Names of 402138555672

• Cardinal: 402138555672 can be written as Four hundred two billion, one hundred thirty-eight million, five hundred fifty-five thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 4.02138555672 × 10¹¹

Factors of 402138555672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4594932

Divisors of 402138555672

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 521 1042 1563 2084 3126 3647 4168 6252 7294 10941 12504 14588 21882 29176 43764 87528 4594399 9188798 13783197 18377596 27566394 32160793 36755192 55132788 64321586 96482379 110265576 128643172 192964758 257286344 385929516 771859032 2393681879 4787363758 7181045637 9574727516 14362091274 16755773153 19149455032 28724182548 33511546306 50267319459 57448365096 67023092612 100534638918 134046185224 201069277836 402138555672
• Sum of all divisors σ(n): 1151172864000
• Sum of proper divisors (its aliquot sum) s(n): 749034308328
• 402138555672 is an abundant number, because the sum of its proper divisors (749034308328) is greater than itself. Its abundance is 346895752656

Bases of 402138555672

• Binary: 101110110100001010100110110010100011000₂
• Hexadecimal: 0x5DA1536518
• Base-36: 54QMWVFC

Squares and roots of 402138555672

• 402138555672 squared (402138555672²) is 161715417957962243371584
• 402138555672 cubed (402138555672³) is 65032004607508748161757745366824448
• The square root of 402138555672 is 634143.9550070629
• The cube root of 402138555672 is 7381.1705097675

Scales and comparisons

• 402,138,555,672 seconds is equal to 12,786 years, 39 weeks, 4 days, 10 hours, 21 minutes, 12 seconds.
• To count from 1 to 402,138,555,672 would take you about twenty-five thousand, five hundred seventy-three 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 402138555672 cubic inches would be around 615.1 feet tall.

Recreational maths with 402138555672

• 402138555672 backwards is 276555831204
• The number of decimal digits it has is: 12
• The sum of 402138555672's digits is 48
• More coming soon!