81474308188

Names of 81474308188

• Cardinal: 81474308188 can be written as Eighty-one billion, four hundred seventy-four million, three hundred eight thousand, one hundred eighty-eight.

Scientific notation

• Scientific notation: 8.1474308188 × 10¹⁰

Factors of 81474308188

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 18189

Divisors of 81474308188

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 13 14 17 26 28 34 52 68 91 119 182 221 238 364 442 476 757 884 1514 1547 3028 3094 5299 6188 9841 10598 12869 17393 19682 21196 25738 34786 39364 51476 68887 69572 90083 121751 137774 167297 180166 226109 243502 275548 295681 334594 360332 452218 487004 591362 669188 904436 1171079 1182724 1582763 2069767 2342158 3165526 3843853 4139534 4684316 6331052 7687706 8279068 13166501 15375412 26333002 26906971 52666004 53813942 92165507 107627884 171164513 184331014 223830517 342329026 368662028 447661034 684658052 895322068 1198151591 1566813619 2396303182 2909796721 3133627238 4792606364 5819593442 6267254476 11639186884 20368577047 40737154094 81474308188
• Sum of all divisors σ(n): 186061809024
• Sum of proper divisors (its aliquot sum) s(n): 104587500836
• 81474308188 is an abundant number, because the sum of its proper divisors (104587500836) is greater than itself. Its abundance is 23113192648

Bases of 81474308188

• Binary: 1001011111000001111110100100001011100₂
• Hexadecimal: 0x12F83F485C
• Base-36: 11FFP6JG

Squares and roots of 81474308188

• 81474308188 squared (81474308188²) is 6638062894713203843344
• 81474308188 cubed (81474308188³) is 540831582055190965805475128500672
• The square root of 81474308188 is 285437.0476795189
• The cube root of 81474308188 is 4335.1775983207

Scales and comparisons

• 81,474,308,188 seconds is equal to 2,590 years, 32 weeks, 5 days, 16 hours, 16 minutes, 28 seconds.
• To count from 1 to 81,474,308,188 would take you about five thousand, one hundred eighty-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 81474308188 cubic inches would be around 361.3 feet tall.

Recreational maths with 81474308188

• 81474308188 backwards is 88180347418
• 81474308188 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81474308188's digits is 52
• More coming soon!