20500992

Names of 20500992

• Cardinal: 20500992 can be written as Twenty million, five hundred thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 2.0500992 × 10⁷

Factors of 20500992

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1488

Divisors of 20500992

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 512 576 768 864 1152 1483 1536 1728 2304 2966 3456 4449 4608 5932 6912 8898 11864 13347 13824 17796 23728 26694 35592 40041 47456 53388 71184 80082 94912 106776 142368 160164 189824 213552 284736 320328 379648 427104 569472 640656 759296 854208 1138944 1281312 1708416 2277888 2562624 3416832 5125248 6833664 10250496 20500992
• Sum of all divisors σ(n): 60725280
• Sum of proper divisors (its aliquot sum) s(n): 40224288
• 20500992 is an abundant number, because the sum of its proper divisors (40224288) is greater than itself. Its abundance is 19723296

Bases of 20500992

• Binary: 1001110001101001000000000₂
• Hexadecimal: 0x138D200
• Base-36: C7EO0

Squares and roots of 20500992

• 20500992 squared (20500992²) is 420290672984064
• 20500992 cubed (20500992³) is 8616375724520912191488
• The square root of 20500992 is 4527.8021158173
• The cube root of 20500992 is 273.6895982331

Scales and comparisons

• 20,500,992 seconds is equal to 33 weeks, 6 days, 6 hours, 43 minutes, 12 seconds.
• To count from 1 to 20,500,992 would take you about fifty weeks!

  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 20500992 cubic inches would be around 22.8 feet tall.

Recreational maths with 20500992

• 20500992 backwards is 29900502
• 20500992 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20500992's digits is 27
• More coming soon!