81423714312

Names of 81423714312

• Cardinal: 81423714312 can be written as Eighty-one billion, four hundred twenty-three million, seven hundred fourteen thousand, three hundred twelve.

Scientific notation

• Scientific notation: 8.1423714312 × 10¹⁰

Factors of 81423714312

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 753524

Divisors of 81423714312

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 19 24 36 38 57 72 76 79 114 152 158 171 228 237 316 342 456 474 632 684 711 948 1368 1422 1501 1896 2844 3002 4503 5688 6004 9006 12008 13509 18012 27018 36024 54036 108072 753421 1506842 2260263 3013684 4520526 6027368 6780789 9041052 13561578 14314999 18082104 27123156 28629998 42944997 54246312 57259996 59520259 85889994 114519992 119040518 128834991 171779988 178560777 238081036 257669982 343559976 357121554 476162072 515339964 535682331 714243108 1030679928 1071364662 1130884921 1428486216 2142729324 2261769842 3392654763 4285458648 4523539684 6785309526 9047079368 10177964289 13570619052 20355928578 27141238104 40711857156 81423714312
• Sum of all divisors σ(n): 235067664000
• Sum of proper divisors (its aliquot sum) s(n): 153643949688
• 81423714312 is an abundant number, because the sum of its proper divisors (153643949688) is greater than itself. Its abundance is 72220235376

Bases of 81423714312

• Binary: 1001011110101001110110100100000001000₂
• Hexadecimal: 0x12F53B4808
• Base-36: 11ELKS20

Squares and roots of 81423714312

• 81423714312 squared (81423714312²) is 6629821252362193633344
• 81423714312 cubed (81423714312³) is 539824671591965309551027133219328
• The square root of 81423714312 is 285348.4086375811
• The cube root of 81423714312 is 4334.2800603567

Scales and comparisons

• 81,423,714,312 seconds is equal to 2,589 years, 1 week, 1 day, 2 hours, 25 minutes, 12 seconds.
• To count from 1 to 81,423,714,312 would take you about five thousand, one hundred seventy-eight 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 81423714312 cubic inches would be around 361.2 feet tall.

Recreational maths with 81423714312

• 81423714312 backwards is 21341732418
• 81423714312 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81423714312's digits is 36
• More coming soon!