820741381551

Names of 820741381551

• Cardinal: 820741381551 can be written as Eight hundred twenty billion, seven hundred forty-one million, three hundred eighty-one thousand, five hundred fifty-one.

Scientific notation

• Scientific notation: 8.20741381551 × 10¹¹

Factors of 820741381551

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 204

Divisors of 820741381551

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 13 21 39 63 91 117 169 181 273 507 543 819 1183 1267 1521 1629 2197 2353 3549 3801 6591 7059 10647 11403 15379 16471 19773 21177 30589 32761 46137 49413 91767 98283 138411 148239 214123 229327 275301 294849 397657 425893 642369 687981 1192971 1277679 1927107 2063943 2783599 2981251 3578913 3833037 5536609 5929741 8350797 8943753 16609827 17789223 25052391 26831259 38756263 41508187 49829481 53367669 71975917 77086633 116268789 124524561 215927751 231259899 348806367 373573683 503831419 539606431 647783253 693779697 1002126229 1511494257 1618819293 3006378687 4534482771 4856457879 7014883603 9019136061 13027640977 21044650809 39082922931 63133952427 91193486839 117248768793 273580460517 820741381551
• Sum of all divisors σ(n): 1475883543680
• Sum of proper divisors (its aliquot sum) s(n): 655142162129
• 820741381551 is a deficient number, because the sum of its proper divisors (655142162129) is less than itself. Its deficiency is 165599219422

Bases of 820741381551

• Binary: 1011111100010111111111111001110110101111₂
• Hexadecimal: 0xBF17FF9DAF
• Base-36: AH1K871R

Squares and roots of 820741381551

• 820741381551 squared (820741381551²) is 673616415390244163165601
• 820741381551 cubed (820741381551³) is 552864867402821293283749230339227151
• The square root of 820741381551 is 905947.7808080331
• The cube root of 820741381551 is 9362.7216101803

Scales and comparisons

• 820,741,381,551 seconds is equal to 26,097 years, 1 week, 6 days, 13 hours, 5 minutes, 51 seconds.
• To count from 1 to 820,741,381,551 would take you about fifty-two thousand, one hundred ninety-four 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 820741381551 cubic inches would be around 780.2 feet tall.

Recreational maths with 820741381551

• 820741381551 backwards is 155183147028
• The number of decimal digits it has is: 12
• The sum of 820741381551's digits is 45
• More coming soon!