20497931664

Names of 20497931664

• Cardinal: 20497931664 can be written as Twenty billion, four hundred ninety-seven million, nine hundred thirty-one thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.0497931664 × 10¹⁰

Factors of 20497931664

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8715119

Divisors of 20497931664

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 168 196 294 336 392 588 784 1176 2352 8715107 17430214 26145321 34860428 52290642 61005749 69720856 104581284 122011498 139441712 183017247 209162568 244022996 366034494 418325136 427040243 488045992 732068988 854080486 976091984 1281120729 1464137976 1708160972 2562241458 2928275952 3416321944 5124482916 6832643888 10248965832 20497931664
• Sum of all divisors σ(n): 61598383344
• Sum of proper divisors (its aliquot sum) s(n): 41100451680
• 20497931664 is an abundant number, because the sum of its proper divisors (41100451680) is greater than itself. Its abundance is 20602520016

Bases of 20497931664

• Binary: 10011000101110001011001110110010000₂
• Hexadecimal: 0x4C5C59D90
• Base-36: 9EZXTAO

Squares and roots of 20497931664

• 20497931664 squared (20497931664²) is 420165202502013808896
• 20497931664 cubed (20497931664³) is 8612517608477000877134563282944
• The square root of 20497931664 is 143170.9875079445
• The cube root of 20497931664 is 2736.7597899265

Scales and comparisons

• 20,497,931,664 seconds is equal to 651 years, 40 weeks, 13 hours, 54 minutes, 24 seconds.
• To count from 1 to 20,497,931,664 would take you about one thousand, three hundred 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 20497931664 cubic inches would be around 228.1 feet tall.

Recreational maths with 20497931664

• 20497931664 backwards is 46613979402
• The number of decimal digits it has is: 11
• The sum of 20497931664's digits is 51
• More coming soon!