813555940509

Names of 813555940509

• Cardinal: 813555940509 can be written as Eight hundred thirteen billion, five hundred fifty-five million, nine hundred forty thousand, five hundred nine.

Scientific notation

• Scientific notation: 8.13555940509 × 10¹¹

Factors of 813555940509

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4028

Divisors of 813555940509

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 9 13 19 29 39 57 87 113 117 171 247 261 339 377 551 741 841 1017 1131 1469 1653 2147 2223 2523 3277 3393 3851 4407 4959 6441 7163 7569 9831 10933 11553 13221 15979 19323 21489 27911 29493 32799 34659 42601 47937 50063 62263 64467 73169 83733 95033 98397 111679 127803 143811 150189 186789 207727 219507 251199 285099 335037 383409 435163 450567 560367 623181 658521 809419 855297 951197 1005111 1235429 1305489 1451827 1805627 1869543 2121901 2428257 2853591 3238691 3706287 3916467 4355481 5416881 5657119 6365703 7284771 8268097 8560773 9716073 11118861 12619727 13066443 16250643 16971357 19097109 23473151 24804291 27584713 29148219 37859181 42102983 50914071 61535129 70419453 74412873 82754139 107485261 113577543 126308949 164056451 184605387 211258359 239774813 248262417 322455783 365972083 378926847 492169353 553816161 719324439 799956677 967367349 1097916249 1476508059 2157973317 2399870031 3117072569 3293748747 4757637079 6953469577 7199610093 9351217707 14272911237 20860408731 28053653121 42818733711 62581226193 90395104501 271185313503 813555940509
• Sum of all divisors σ(n): 1392228976320
• Sum of proper divisors (its aliquot sum) s(n): 578673035811
• 813555940509 is a deficient number, because the sum of its proper divisors (578673035811) is less than itself. Its deficiency is 234882904698

Bases of 813555940509

• Binary: 1011110101101011101101100111110010011101₂
• Hexadecimal: 0xBD6BB67C9D
• Base-36: ADQQ7999

Squares and roots of 813555940509

• 813555940509 squared (813555940509²) is 661873268337483547179081
• 813555940509 cubed (813555940509³) is 538470929320067158043590716805292229
• The square root of 813555940509 is 901973.3590904999
• The cube root of 813555940509 is 9335.3185110811

Scales and comparisons

• 813,555,940,509 seconds is equal to 25,868 years, 29 weeks, 1 day, 17 hours, 15 minutes, 9 seconds.
• To count from 1 to 813,555,940,509 would take you about fifty-one thousand, seven hundred thirty-seven 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 813555940509 cubic inches would be around 777.9 feet tall.

Recreational maths with 813555940509

• 813555940509 backwards is 905049555318
• The number of decimal digits it has is: 12
• The sum of 813555940509's digits is 54
• More coming soon!