405729720513

Names of 405729720513

• Cardinal: 405729720513 can be written as Four hundred five billion, seven hundred twenty-nine million, seven hundred twenty thousand, five hundred thirteen.

Scientific notation

• Scientific notation: 4.05729720513 × 10¹¹

Factors of 405729720513

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 609

Divisors of 405729720513

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 9 13 23 39 69 79 117 169 207 237 299 491 507 529 711 897 1027 1473 1521 1587 1817 2197 2691 3081 3887 4419 4761 5451 6383 6591 6877 9243 11293 11661 13351 16353 19149 19773 20631 23621 33879 34983 38789 40053 41791 50531 57447 61893 70863 82979 89401 101637 116367 120159 125373 146809 151593 173563 212589 248937 259739 268203 307073 349101 376119 440427 454779 504257 520689 543283 746811 779217 804609 892147 921219 1078727 1162213 1321281 1512771 1562067 1629849 1908517 2337651 2676441 2763657 3236181 3376607 3486639 3991949 4538313 4889547 5725551 6555341 7062679 8029323 9708543 10129821 10459917 11597911 11975847 17176653 19666023 20519381 21188037 24810721 30389463 34793733 35927541 43895891 58998069 61558143 63564111 74432163 85219433 91814827 104381199 131687673 150772843 184674429 223296489 255658299 266751953 275444481 395063019 452318529 570646583 766974897 800255859 826333443 1356955587 1711939749 1960046959 2400767577 3467775389 5135819247 5880140877 10403326167 17640422631 31209978501 45081080057 135243240171 405729720513
• Sum of all divisors σ(n): 673442515200
• Sum of proper divisors (its aliquot sum) s(n): 267712794687
• 405729720513 is a deficient number, because the sum of its proper divisors (267712794687) is less than itself. Its deficiency is 138016925826

Bases of 405729720513

• Binary: 101111001110111011000000011100011000001₂
• Hexadecimal: 0x5E776038C1
• Base-36: 56E0ZZY9

Squares and roots of 405729720513

• 405729720513 squared (405729720513²) is 164616606107557092983169
• 405729720513 cubed (405729720513³) is 66789849587817748153251911783045697
• The square root of 405729720513 is 636969.1676313697
• The cube root of 405729720513 is 7403.0771261177

Scales and comparisons

• 405,729,720,513 seconds is equal to 12,900 years, 49 weeks, 2 days, 20 hours, 8 minutes, 33 seconds.
• To count from 1 to 405,729,720,513 would take you about twenty-five thousand, eight hundred one 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 405729720513 cubic inches would be around 616.9 feet tall.

Recreational maths with 405729720513

• 405729720513 backwards is 315027927504
• The number of decimal digits it has is: 12
• The sum of 405729720513's digits is 45
• More coming soon!