20479855890

Names of 20479855890

• Cardinal: 20479855890 can be written as Twenty billion, four hundred seventy-nine million, eight hundred fifty-five thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 2.047985589 × 10¹⁰

Factors of 20479855890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 83875

Divisors of 20479855890

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 631 1262 1893 3155 3786 6310 8203 9465 16406 18930 24609 41015 49218 82030 83221 123045 166442 246090 249663 416105 499326 832210 1081873 1248315 2163746 2496630 3245619 5409365 6491238 10818730 16228095 32456190 52512451 105024902 157537353 262562255 315074706 525124510 682661863 787686765 1365323726 1575373530 2047985589 3413309315 4095971178 6826618630 10239927945 20479855890
• Sum of all divisors σ(n): 53017074432
• Sum of proper divisors (its aliquot sum) s(n): 32537218542
• 20479855890 is an abundant number, because the sum of its proper divisors (32537218542) is greater than itself. Its abundance is 12057362652

Bases of 20479855890

• Binary: 10011000100101100011100110100010010₂
• Hexadecimal: 0x4C4B1CD12
• Base-36: 9EP6DXU

Squares and roots of 20479855890

• 20479855890 squared (20479855890²) is 419424497275167692100
• 20479855890 cubed (20479855890³) is 8589753260931132009791891469000
• The square root of 20479855890 is 143107.8470594817
• The cube root of 20479855890 is 2735.9550973595

Scales and comparisons

• 20,479,855,890 seconds is equal to 651 years, 10 weeks, 1 day, 8 hours, 51 minutes, 30 seconds.
• To count from 1 to 20,479,855,890 would take you about one thousand, three hundred two 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 20479855890 cubic inches would be around 228 feet tall.

Recreational maths with 20479855890

• 20479855890 backwards is 09855897402
• The number of decimal digits it has is: 11
• The sum of 20479855890's digits is 57
• More coming soon!