21138164641392

Names of 21138164641392

• Cardinal: 21138164641392 can be written as Twenty-one trillion, one hundred thirty-eight billion, one hundred sixty-four million, six hundred forty-one thousand, three hundred ninety-two.

Scientific notation

• Scientific notation: 2.1138164641392 × 10¹³

Factors of 21138164641392

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 37141040

Divisors of 21138164641392

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 48 71 142 167 213 284 334 426 501 568 668 852 1002 1136 1336 1704 2004 2672 3408 4008 8016 11857 23714 35571 47428 71142 94856 142284 189712 284568 569136 37140797 74281594 111422391 148563188 222844782 297126376 445689564 594252752 891379128 1782758256 2636996587 5273993174 6202513099 7910989761 10547986348 12405026198 15821979522 18607539297 21095972696 24810052396 31643959044 37215078594 42191945392 49620104792 63287918088 74430157188 99240209584 126575836176 148860314376 297720628752 440378430029 880756860058 1321135290087 1761513720116 2642270580174 3523027440232 5284541160348 7046054880464 10569082320696 21138164641392
• Sum of all divisors σ(n): 55707631483392
• Sum of proper divisors (its aliquot sum) s(n): 34569466842000
• 21138164641392 is an abundant number, because the sum of its proper divisors (34569466842000) is greater than itself. Its abundance is 13431302200608

Bases of 21138164641392

• Binary: 100110011100110011100110010110110111001110000₂
• Hexadecimal: 0x13399CCB6E70
• Base-36: 7HQQLGFAO

Squares and roots of 21138164641392

• 21138164641392 squared (21138164641392²) is 446822004406594979959697664
• 21138164641392 cubed (21138164641392³) is 9444997094543386418319569998359300108288
• The square root of 21138164641392 is 4597625.9788495193
• The cube root of 21138164641392 is 27649.6152300343

Scales and comparisons

• 21,138,164,641,392 seconds is equal to 672,128 years, 13 weeks, 8 hours, 23 minutes, 12 seconds.
• To count from 1 to 21,138,164,641,392 would take you about one million, six hundred eighty thousand, three hundred twenty 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 21138164641392 cubic inches would be around 2304.1 feet tall.

Recreational maths with 21138164641392

• 21138164641392 backwards is 29314646183112
• The number of decimal digits it has is: 14
• The sum of 21138164641392's digits is 51
• More coming soon!