21429235126439

Names of 21429235126439

• Cardinal: 21429235126439 can be written as Twenty-one trillion, four hundred twenty-nine billion, two hundred thirty-five million, one hundred twenty-six thousand, four hundred thirty-nine.

Scientific notation

• Scientific notation: 2.1429235126439 × 10¹³

Factors of 21429235126439

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 176

Divisors of 21429235126439

• Number of divisors d(n): 96
• Complete list of divisors:
  1 7 29 49 61 79 203 427 553 841 1421 1769 2291 2989 3721 3871 4819 5887 12383 16037 24389 26047 33733 41209 51301 66439 86681 107909 112259 139751 170723 182329 226981 236131 293959 359107 465073 755363 978257 1195061 1487729 1588867 1926731 2057713 2513749 3129361 3255511 4052779 5287541 6582449 6847799 8524811 10414103 11122069 13487117 14403991 17931499 21905527 28369453 46077143 59673677 72898721 90751469 94409819 117530591 125520493 153338689 190891021 198586171 247219519 322540001 417715739 520013471 635260283 822714137 878643451 1336237147 1730536633 3640094297 4446821981 5535839609 5758998959 7169366051 9353660029 12113756431 15080390659 25480660079 38750877263 50185562357 105562734613 271256140841 351298936499 437331329111 738939142291 3061319303777 21429235126439
• Sum of all divisors σ(n): 26580689798400
• Sum of proper divisors (its aliquot sum) s(n): 5151454671961
• 21429235126439 is a deficient number, because the sum of its proper divisors (5151454671961) is less than itself. Its deficiency is 16277780454478

Bases of 21429235126439

• Binary: 100110111110101100001111100101001000010100111₂
• Hexadecimal: 0x137D61F290A7
• Base-36: 7LGGDB2XZ

Squares and roots of 21429235126439

• 21429235126439 squared (21429235126439²) is 459212118104207104316820721
• 21429235126439 cubed (21429235126439³) is 9840564451765129528052507745892930142519
• The square root of 21429235126439 is 4629172.1858707093
• The cube root of 21429235126439 is 27775.9479726081

Scales and comparisons

• 21,429,235,126,439 seconds is equal to 681,383 years, 20 weeks, 2 days, 16 hours, 53 minutes, 59 seconds.
• To count from 1 to 21,429,235,126,439 would take you about one million, seven hundred three thousand, four hundred fifty-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 21429235126439 cubic inches would be around 2314.7 feet tall.

Recreational maths with 21429235126439

• 21429235126439 backwards is 93462153292412
• The number of decimal digits it has is: 14
• The sum of 21429235126439's digits is 53
• More coming soon!