21001650231945984

Names of 21001650231945984

• Cardinal: 21001650231945984 can be written as Twenty-one quadrillion, one trillion, six hundred fifty billion, two hundred thirty-one million, nine hundred forty-five thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.1001650231945984 × 10¹⁶

Factors of 21001650231945984

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 215322037451

Divisors of 21001650231945984

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 127 128 192 254 256 381 384 508 762 768 1016 1524 2032 3048 4064 6096 8128 12192 16256 24384 32512 48768 97536 215322037319 430644074638 645966111957 861288149276 1291932223914 1722576298552 2583864447828 3445152597104 5167728895656 6890305194208 10335457791312 13780610388416 20670915582624 27345898739513 27561220776832 41341831165248 54691797479026 55122441553664 82037696218539 82683662330496 109383594958052 164075392437078 165367324660992 218767189916104 328150784874156 437534379832208 656301569748312 875068759664416 1312603139496624 1750137519328832 2625206278993248 3500275038657664 5250412557986496 7000550077315328 10500825115972992 21001650231945984
• Sum of all divisors σ(n): 56335135268106240
• Sum of proper divisors (its aliquot sum) s(n): 35333485036160256
• 21001650231945984 is an abundant number, because the sum of its proper divisors (35333485036160256) is greater than itself. Its abundance is 14331834804214272

Bases of 21001650231945984

• Binary: 1001010100111001110001110111101110001011010101100000000₂
• Hexadecimal: 0x4A9CE3BDC5AB00
• Base-36: 5QSGOX9K6IO

Squares and roots of 21001650231945984

• 21001650231945984 squared (21001650231945984²) is 441069312464996803546139493728256
• 21001650231945984 cubed (21001650231945984³) is 9263183428434755811091929653822041896462166523904
• The square root of 21001650231945984 is 144919461.1911940003
• The cube root of 21001650231945984 is 275899.6442183647

Scales and comparisons

• 21,001,650,231,945,984 seconds is equal to 667,787,515 years, 2 days, 8 hours, 6 minutes, 24 seconds.
• To count from 1 to 21,001,650,231,945,984 would take you about two billion, three million, three hundred sixty-two thousand, five hundred forty-five 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 21001650231945984 cubic inches would be around 22991.6 feet tall.

Recreational maths with 21001650231945984

• 21001650231945984 backwards is 48954913205610012
• The number of decimal digits it has is: 17
• The sum of 21001650231945984's digits is 60
• More coming soon!