81012490132

Names of 81012490132

• Cardinal: 81012490132 can be written as Eighty-one billion, twelve million, four hundred ninety thousand, one hundred thirty-two.

Scientific notation

• Scientific notation: 8.1012490132 × 10¹⁰

Factors of 81012490132

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4431

Divisors of 81012490132

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 14 17 28 34 68 107 119 214 238 409 428 476 749 818 1498 1636 1819 2863 2996 3638 3889 5726 6953 7276 7778 11452 12733 13906 15556 25466 27223 27812 43763 48671 50932 54446 66113 87526 97342 108892 132226 175052 194684 264452 306341 416123 462791 612682 743971 832246 925582 1225364 1487942 1590601 1664492 1851164 2912861 2975884 3181202 5207797 5825722 6362404 7074091 10415594 11134207 11651444 14148182 20831188 22268414 27040217 28296364 44536828 49518637 54080434 99037274 108160868 170194307 189281519 198074548 340388614 378563038 680777228 757126076 1191360149 2382720298 2893303219 4765440596 5786606438 11573212876 20253122533 40506245066 81012490132
• Sum of all divisors σ(n): 173627193600
• Sum of proper divisors (its aliquot sum) s(n): 92614703468
• 81012490132 is an abundant number, because the sum of its proper divisors (92614703468) is greater than itself. Its abundance is 11602213336

Bases of 81012490132

• Binary: 1001011011100101110000111111110010100₂
• Hexadecimal: 0x12DCB87F94
• Base-36: 117SQTG4

Squares and roots of 81012490132

• 81012490132 squared (81012490132²) is 6563023557387397377424
• 81012490132 cubed (81012490132³) is 531686881178930065739724479579968
• The square root of 81012490132 is 284626.9314945443
• The cube root of 81012490132 is 4326.9710931651

Scales and comparisons

• 81,012,490,132 seconds is equal to 2,575 years, 49 weeks, 1 day, 13 hours, 28 minutes, 52 seconds.
• To count from 1 to 81,012,490,132 would take you about five thousand, one hundred fifty-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 81012490132 cubic inches would be around 360.6 feet tall.

Recreational maths with 81012490132

• 81012490132 backwards is 23109421018
• The number of decimal digits it has is: 11
• The sum of 81012490132's digits is 31
• More coming soon!