81779736132

Names of 81779736132

• Cardinal: 81779736132 can be written as Eighty-one billion, seven hundred seventy-nine million, seven hundred thirty-six thousand, one hundred thirty-two.

Scientific notation

• Scientific notation: 8.1779736132 × 10¹⁰

Factors of 81779736132

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 7603

Divisors of 81779736132

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 61 81 108 122 162 183 243 244 324 366 486 549 729 732 972 1098 1458 1647 2196 2916 3294 3721 4941 6588 7442 7537 9882 11163 14823 14884 15074 19764 22326 22611 29646 30148 33489 44469 44652 45222 59292 66978 67833 88938 90444 100467 133956 135666 177876 200934 203499 271332 301401 401868 406998 459757 602802 610497 813996 904203 919514 1205604 1220994 1379271 1808406 1831491 1839028 2441988 2712609 2758542 3616812 3662982 4137813 5425218 5494473 5517084 7325964 8275626 10850436 10988946 12413439 16551252 21977892 24826878 28045177 37240317 49653756 56090354 74480634 84135531 111720951 112180708 148961268 168271062 223441902 252406593 335162853 336542124 446883804 504813186 670325706 757219779 1009626372 1340651412 1514439558 2271659337 3028879116 4543318674 6814978011 9086637348 13629956022 20444934033 27259912044 40889868066 81779736132
• Sum of all divisors σ(n): 218177859354
• Sum of proper divisors (its aliquot sum) s(n): 136398123222
• 81779736132 is an abundant number, because the sum of its proper divisors (136398123222) is greater than itself. Its abundance is 54618387090

Bases of 81779736132

• Binary: 1001100001010011100111011111001000100₂
• Hexadecimal: 0x130A73BE44
• Base-36: 11KHJK90

Squares and roots of 81779736132

• 81779736132 squared (81779736132²) is 6687925241819546321424
• 81779736132 cubed (81779736132³) is 546936761546544789726005978491968
• The square root of 81779736132 is 285971.5652508131
• The cube root of 81779736132 is 4340.5880288703

Scales and comparisons

• 81,779,736,132 seconds is equal to 2,600 years, 17 weeks, 5 days, 17 hours, 22 minutes, 12 seconds.
• To count from 1 to 81,779,736,132 would take you about five thousand, two hundred 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 81779736132 cubic inches would be around 361.7 feet tall.

Recreational maths with 81779736132

• 81779736132 backwards is 23163797718
• 81779736132 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81779736132's digits is 54
• More coming soon!