31431387988

Names of 31431387988

• Cardinal: 31431387988 can be written as Thirty-one billion, four hundred thirty-one million, three hundred eighty-seven thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 3.1431387988 × 10¹⁰

Factors of 31431387988

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 820

Divisors of 31431387988

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 7 11 13 14 22 26 28 44 52 77 91 113 127 143 154 182 226 254 286 308 364 452 508 547 572 791 889 1001 1094 1243 1397 1469 1582 1651 1778 2002 2188 2486 2794 2938 3164 3302 3556 3829 4004 4972 5588 5876 6017 6604 7111 7658 8701 9779 10283 11557 12034 14222 14351 15316 16159 17402 18161 19558 20566 23114 24068 28444 28702 32318 34804 36322 39116 41132 42119 46228 49777 57404 61811 64636 69469 72644 78221 84238 99554 100457 113113 123622 127127 138938 156442 157861 168476 186563 199108 200914 226226 247244 254254 277876 312884 315722 373126 401828 432677 452452 486283 508508 547547 631444 679921 746252 764159 803543 865354 903097 972566 1095094 1105027 1305941 1359842 1528318 1607086 1730708 1806194 1945132 2052193 2190188 2210054 2611882 2719684 3056636 3214172 3612388 4104386 4420108 4759447 5223764 5349113 5624801 6321679 7849997 8208772 8838973 9518894 9934067 10698226 11249602 12643358 14365351 15699994 17677946 19037788 19868134 21396452 22499204 25286716 28730702 31399988 35355892 39736268 54949979 57461404 61872811 69538469 86349967 102049961 109899958 123745622 139076938 172699934 204099922 219799916 247491244 278153876 345399868 408199844 604449769 714349727 1122549571 1208899538 1428699454 2245099142 2417799076 2857398908 4490198284 7857846997 15715693994 31431387988
• Sum of all divisors σ(n): 75230281728
• Sum of proper divisors (its aliquot sum) s(n): 43798893740
• 31431387988 is an abundant number, because the sum of its proper divisors (43798893740) is greater than itself. Its abundance is 12367505752

Bases of 31431387988

• Binary: 11101010001011101001110101101010100₂
• Hexadecimal: 0x75174EB54
• Base-36: EFTFQ6S

Squares and roots of 31431387988

• 31431387988 squared (31431387988²) is 987932150852190688144
• 31431387988 cubed (31431387988³) is 31052078739254550358814775614272
• The square root of 31431387988 is 177288.9956765507
• The cube root of 31431387988 is 3155.8851259323

Scales and comparisons

• 31,431,387,988 seconds is equal to 999 years, 21 weeks, 6 days, 5 hours, 6 minutes, 28 seconds.
• To count from 1 to 31,431,387,988 would take you about one thousand, nine hundred ninety-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 31431387988 cubic inches would be around 263 feet tall.

Recreational maths with 31431387988

• 31431387988 backwards is 88978313413
• The number of decimal digits it has is: 11
• The sum of 31431387988's digits is 55
• More coming soon!