21042040996479

Names of 21042040996479

• Cardinal: 21042040996479 can be written as Twenty-one trillion, forty-two billion, forty million, nine hundred ninety-six thousand, four hundred seventy-nine.

Scientific notation

• Scientific notation: 2.1042040996479 × 10¹³

Factors of 21042040996479

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 206

Divisors of 21042040996479

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 23 53 69 127 159 381 1219 2809 2921 3657 6731 8427 8763 16129 20193 48387 64607 148877 154813 193821 356743 370967 446631 464439 854837 1070229 1112901 2048383 2564511 3424171 6145149 8205089 10272513 18907379 19661251 24615267 45306361 47112809 56722137 58983753 108564299 135919083 141338427 325692897 434869717 1042046303 1304609151 2401237133 2496978877 3126138909 5753907847 7203711399 7490936631 17261723541 55228454059 132339880481 165685362177 304957115891 397019641443 914871347673 7014013665493 21042040996479
• Sum of all divisors σ(n): 30075693465600
• Sum of proper divisors (its aliquot sum) s(n): 9033652469121
• 21042040996479 is a deficient number, because the sum of its proper divisors (9033652469121) is less than itself. Its deficiency is 12008388527358

Bases of 21042040996479

• Binary: 100110010001100111011011000010000001001111111₂
• Hexadecimal: 0x13233B61027F
• Base-36: 7GIKVX473

Squares and roots of 21042040996479

• 21042040996479 squared (21042040996479²) is 442767489297502947290397441
• 21042040996479 cubed (21042040996479³) is 9316731661706133884688873982407591610239
• The square root of 21042040996479 is 4587160.4502653925
• The cube root of 21042040996479 is 27607.6402728265

Scales and comparisons

• 21,042,040,996,479 seconds is equal to 669,071 years, 42 weeks, 3 days, 3 hours, 54 minutes, 39 seconds.
• To count from 1 to 21,042,040,996,479 would take you about one million, six hundred seventy-two thousand, six hundred seventy-nine 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 21042040996479 cubic inches would be around 2300.6 feet tall.

Recreational maths with 21042040996479

• 21042040996479 backwards is 97469904024012
• The number of decimal digits it has is: 14
• The sum of 21042040996479's digits is 57
• More coming soon!