821012705513

Names of 821012705513

• Cardinal: 821012705513 can be written as Eight hundred twenty-one billion, twelve million, seven hundred five thousand, five hundred thirteen.

Scientific notation

• Scientific notation: 8.21012705513 × 10¹¹

Factors of 821012705513

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1013

Divisors of 821012705513

• Number of divisors d(n): 192
• Complete list of divisors:
  1 7 11 13 19 31 49 77 91 133 143 209 217 247 331 341 403 539 589 601 637 931 1001 1463 1519 1729 2317 2387 2717 2821 3641 4123 4207 4303 4433 6289 6479 6611 7007 7657 7813 10241 10261 11419 12103 16219 16709 18631 19019 19747 25487 28861 29449 30121 31031 44023 45353 46277 47333 53599 54691 69179 71827 79933 81757 84227 85943 112871 125609 130417 133133 133393 148447 178409 194959 198931 204941 210847 217217 242203 308161 317471 323939 331331 353989 375193 382837 484253 502789 559531 572299 589589 601601 790097 879263 899327 912919 933751 1039129 1364713 1392517 1434587 1467323 1632917 1695421 2144549 2188241 2319317 2477923 2534467 2586103 2664233 3389771 3779689 3893879 4006093 4127123 4211207 4601857 5530679 6154841 6166861 6295289 6536257 7273903 9552991 9747619 10042109 10271261 11430419 11867947 15011843 15317687 17345461 17741269 18102721 18649631 26457823 27257153 27879137 28447133 32212999 41576579 43168027 44067023 49135957 50620427 67835471 71898827 80012933 80169193 105082901 107223809 117170359 124188883 126719047 130547417 185204761 190800071 195153959 199129931 225490993 291036053 302176189 343951699 354342989 474848297 540495527 561184351 820192513 881861123 1288873949 1366077713 1393909517 1523214667 2037252371 2407661893 2480400923 3323938079 3783468689 3928290457 5741347591 6173027861 9022117643 10662502669 16755361337 26484280823 43211195027 63154823501 74637518683 117287529359 821012705513
• Sum of all divisors σ(n): 1224894504960
• Sum of proper divisors (its aliquot sum) s(n): 403881799447
• 821012705513 is a deficient number, because the sum of its proper divisors (403881799447) is less than itself. Its deficiency is 417130906066

Bases of 821012705513

• Binary: 1011111100101000001010111011000011101001₂
• Hexadecimal: 0xBF282BB0E9
• Base-36: AH61RLYH

Squares and roots of 821012705513

• 821012705513 squared (821012705513²) is 674061862613776060593169
• 821012705513 cubed (821012705513³) is 553413353507668389292708704296440697
• The square root of 821012705513 is 906097.5143509665
• The cube root of 821012705513 is 9363.7532184715

Scales and comparisons

• 821,012,705,513 seconds is equal to 26,105 years, 34 weeks, 3 days, 20 hours, 51 minutes, 53 seconds.
• To count from 1 to 821,012,705,513 would take you about fifty-two thousand, two hundred eleven 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 821012705513 cubic inches would be around 780.3 feet tall.

Recreational maths with 821012705513

• 821012705513 backwards is 315507210128
• The number of decimal digits it has is: 12
• The sum of 821012705513's digits is 35
• More coming soon!