12729798081

Names of 12729798081

• Cardinal: 12729798081 can be written as Twelve billion, seven hundred twenty-nine million, seven hundred ninety-eight thousand and eighty-one.

Scientific notation

• Scientific notation: 1.2729798081 × 10¹⁰

Factors of 12729798081

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 963

Divisors of 12729798081

• Number of divisors d(n): 160
• Complete list of divisors:
  1 3 7 9 11 13 21 27 33 39 63 77 81 91 99 117 143 169 189 231 273 297 351 429 507 567 693 819 891 929 1001 1053 1183 1287 1521 1859 2079 2197 2457 2787 3003 3549 3861 4563 5577 6237 6503 6591 7371 8361 9009 10219 10647 11583 12077 13013 13689 15379 16731 19509 19773 24167 25083 27027 30657 31941 36231 39039 46137 50193 58527 59319 71533 72501 75249 81081 84539 91971 95823 108693 117117 132847 138411 150579 157001 169169 175581 177957 214599 217503 253617 275913 326079 351351 398541 415233 471003 507507 526743 643797 652509 760851 827739 929929 978237 1054053 1099007 1195623 1245699 1413009 1522521 1727011 1931391 1957527 2041013 2282553 2789787 3297021 3586869 4239027 4567563 5181033 5794173 6123039 6847659 8369361 9891063 10760607 12089077 12717081 13702689 14287091 15543099 18369117 22451143 25108083 29673189 36267231 42861273 46629297 55107351 67353429 75324249 89019567 108801693 128583819 139887891 157158001 165322053 202060287 326405079 385751457 471474003 606180861 979215237 1157254371 1414422009 1818542583 4243266027 12729798081
• Sum of all divisors σ(n): 25710854400
• Sum of proper divisors (its aliquot sum) s(n): 12981056319
• 12729798081 is an abundant number, because the sum of its proper divisors (12981056319) is greater than itself. Its abundance is 251258238

Bases of 12729798081

• Binary: 1011110110110000010100110111000001₂
• Hexadecimal: 0x2F6C14DC1
• Base-36: 5UIZR29

Squares and roots of 12729798081

• 12729798081 squared (12729798081²) is 162047759183031282561
• 12729798081 cubed (12729798081³) is 2062835253878501748507986565441
• The square root of 12729798081 is 112826.4068425473
• The cube root of 12729798081 is 2334.9298556421

Scales and comparisons

• 12,729,798,081 seconds is equal to 404 years, 39 weeks, 6 days, 15 hours, 1 minute, 21 seconds.
• To count from 1 to 12,729,798,081 would take you about eight hundred nine 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 12729798081 cubic inches would be around 194.6 feet tall.

Recreational maths with 12729798081

• 12729798081 backwards is 18089792721
• The number of decimal digits it has is: 11
• The sum of 12729798081's digits is 54
• More coming soon!