20401994420

Names of 20401994420

• Cardinal: 20401994420 can be written as Twenty billion, four hundred one million, nine hundred ninety-four thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.040199442 × 10¹⁰

Factors of 20401994420

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 67

Divisors of 20401994420

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 5 10 19 20 38 41 76 82 95 164 190 205 361 380 410 722 779 820 1444 1558 1681 1805 3116 3362 3610 3895 6724 7220 7790 8405 14801 15580 16810 29602 31939 33620 59204 63878 68921 74005 127756 137842 148010 159695 275684 296020 319390 344605 606841 638780 689210 1213682 1309499 1378420 2427364 2618998 2825761 3034205 5237996 5651522 6068410 6547495 11303044 12136820 13094990 14128805 24880481 26189980 28257610 49760962 53689459 56515220 99521924 107378918 124402405 214757836 248804810 268447295 497609620 536894590 1020099721 1073789180 2040199442 4080398884 5100498605 10200997210 20401994420
• Sum of all divisors σ(n): 46348272810
• Sum of proper divisors (its aliquot sum) s(n): 25946278390
• 20401994420 is an abundant number, because the sum of its proper divisors (25946278390) is greater than itself. Its abundance is 5544283970

Bases of 20401994420

• Binary: 10011000000000011011011101010110100₂
• Hexadecimal: 0x4C00DBAB4
• Base-36: 9DETJN8

Squares and roots of 20401994420

• 20401994420 squared (20401994420²) is 416241376313711136400
• 20401994420 cubed (20401994420³) is 8492154236925454774324658888000
• The square root of 20401994420 is 142835.5502667317
• The cube root of 20401994420 is 2732.4834579979

Scales and comparisons

• 20,401,994,420 seconds is equal to 648 years, 37 weeks, 3 days, 4 hours, 40 minutes, 20 seconds.
• To count from 1 to 20,401,994,420 would take you about one thousand, two hundred ninety-seven 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 20401994420 cubic inches would be around 227.7 feet tall.

Recreational maths with 20401994420

• 20401994420 backwards is 02449910402
• The number of decimal digits it has is: 11
• The sum of 20401994420's digits is 35
• More coming soon!