21491689742341

Names of 21491689742341

• Cardinal: 21491689742341 can be written as Twenty-one trillion, four hundred ninety-one billion, six hundred eighty-nine million, seven hundred forty-two thousand, three hundred forty-one.

Scientific notation

• Scientific notation: 2.1491689742341 × 10¹³

Factors of 21491689742341

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 328

Divisors of 21491689742341

• Number of divisors d(n): 96
• Complete list of divisors:
  1 7 13 49 91 127 169 181 343 637 889 1183 1267 1651 2353 4459 6223 8281 8869 11557 16129 16471 21463 22987 30589 43561 57967 62083 80899 112903 115297 150241 160909 209677 214123 298831 566293 790321 807079 1051687 1126363 1467739 1498861 2048383 2091817 2725801 2919349 3884803 5532247 7361809 7884541 10274173 10492027 14338681 14642719 19080607 20435443 26628979 27193621 37951537 71919211 100370767 102499033 133564249 143048101 186402853 190355347 265660759 346176727 370757323 493369981 702595369 934949743 1001336707 1304819971 1332487429 1859625313 2423237089 2595301261 3453589867 4819845199 9133739797 13017377191 16962659623 18167108827 24175129069 33738916393 62657987587 118738617361 127169761789 169225903483 236172414751 438605913109 1653206903257 3070241391763 21491689742341
• Sum of all divisors σ(n): 27505959936000
• Sum of proper divisors (its aliquot sum) s(n): 6014270193659
• 21491689742341 is a deficient number, because the sum of its proper divisors (6014270193659) is less than itself. Its deficiency is 15477419548682

Bases of 21491689742341

• Binary: 100111000101111101100100010000110000000000101₂
• Hexadecimal: 0x138BEC886005
• Base-36: 7M95968ZP

Squares and roots of 21491689742341

• 21491689742341 squared (21491689742341²) is 461892727981045358968160281
• 21491689742341 cubed (21491689742341³) is 9926855204012134332014254483187680157821
• The square root of 21491689742341 is 4635913.0430090035
• The cube root of 21491689742341 is 27802.9057494171

Scales and comparisons

• 21,491,689,742,341 seconds is equal to 683,369 years, 13 weeks, 2 days, 1 hour, 19 minutes, 1 second.
• To count from 1 to 21,491,689,742,341 would take you about one million, seven hundred eight thousand, four hundred twenty-three 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 21491689742341 cubic inches would be around 2316.9 feet tall.

Recreational maths with 21491689742341

• 21491689742341 backwards is 14324798619412
• The number of decimal digits it has is: 14
• The sum of 21491689742341's digits is 61
• More coming soon!