20988631946728

Names of 20988631946728

• Cardinal: 20988631946728 can be written as Twenty trillion, nine hundred eighty-eight billion, six hundred thirty-one million, nine hundred forty-six thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.0988631946728 × 10¹³

Factors of 20988631946728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 226726

Divisors of 20988631946728

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 67 109 134 218 268 436 536 872 1597 3194 6388 7303 12776 14606 29212 58424 106999 174073 213998 224951 348146 427996 449902 696292 855992 899804 1392584 1799608 11662891 15071717 23325782 24519659 30143434 46651564 49039318 60286868 93303128 98078636 120573736 196157272 359246747 718493494 1436986988 1642817153 2873973976 3285634306 6571268612 13142537224 24069532049 39157895423 48139064098 78315790846 96278128196 156631581692 192556256392 313263163384 2623578993341 5247157986682 10494315973364 20988631946728
• Sum of all divisors σ(n): 40332903811200
• Sum of proper divisors (its aliquot sum) s(n): 19344271864472
• 20988631946728 is a deficient number, because the sum of its proper divisors (19344271864472) is less than itself. Its deficiency is 1644360082256

Bases of 20988631946728

• Binary: 100110001011011001011111100111001010111101000₂
• Hexadecimal: 0x1316CBF395E8
• Base-36: 7FU1LJTNS

Squares and roots of 20988631946728

• 20988631946728 squared (20988631946728²) is 440522670995211195029905984
• 20988631946728 cubed (20988631946728³) is 9245968205708037805506034911140736420352
• The square root of 20988631946728 is 4581335.1707474973
• The cube root of 20988631946728 is 27584.2625164897

Scales and comparisons

• 20,988,631,946,728 seconds is equal to 667,373 years, 29 weeks, 5 days, 20 hours, 45 minutes, 28 seconds.
• To count from 1 to 20,988,631,946,728 would take you about one million, six hundred sixty-eight thousand, four hundred thirty-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 20988631946728 cubic inches would be around 2298.7 feet tall.

Recreational maths with 20988631946728

• 20988631946728 backwards is 82764913688902
• The number of decimal digits it has is: 14
• The sum of 20988631946728's digits is 73
• More coming soon!