20521945216

Names of 20521945216

• Cardinal: 20521945216 can be written as Twenty billion, five hundred twenty-one million, nine hundred forty-five thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.0521945216 × 10¹⁰

Factors of 20521945216

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 139

Divisors of 20521945216

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 16 17 32 34 37 64 68 74 83 128 136 148 166 272 296 332 544 592 629 664 1088 1184 1258 1328 1369 1411 2176 2368 2516 2656 2738 2822 3071 4736 5032 5312 5476 5644 6142 6889 10064 10624 10952 11288 12284 13778 20128 21904 22576 23273 24568 27556 40256 43808 45152 46546 49136 52207 55112 80512 87616 90304 93092 98272 104414 110224 113627 117113 175232 180608 186184 196544 208828 220448 227254 234226 254893 372368 393088 417656 440896 454508 468452 509786 744736 835312 881792 909016 936904 1019572 1489472 1670624 1818032 1873808 1931659 2039144 2978944 3341248 3636064 3747616 3863318 4078288 4333181 6682496 7272128 7495232 7726636 8156576 8666362 9431041 14544256 14990464 15453272 16313152 17332724 18862082 30906544 32626304 34665448 37724164 61813088 69330896 75448328 123626176 138661792 150896656 160327697 247252352 277323584 301793312 320655394 554647168 603586624 641310788 1207173248 1282621576 2565243152 5130486304 10260972608 20521945216
• Sum of all divisors σ(n): 45032540490
• Sum of proper divisors (its aliquot sum) s(n): 24510595274
• 20521945216 is an abundant number, because the sum of its proper divisors (24510595274) is greater than itself. Its abundance is 3988650058

Bases of 20521945216

• Binary: 10011000111001101000000100010000000₂
• Hexadecimal: 0x4C7340880
• Base-36: 9FE8I9S

Squares and roots of 20521945216

• 20521945216 squared (20521945216²) is 421150235448505286656
• 20521945216 cubed (20521945216³) is 8642822059579726681840807837696
• The square root of 20521945216 is 143254.8261525593
• The cube root of 20521945216 is 2737.8280875749

Scales and comparisons

• 20,521,945,216 seconds is equal to 652 years, 27 weeks, 5 days, 12 hours, 20 minutes, 16 seconds.
• To count from 1 to 20,521,945,216 would take you about one thousand, three hundred five 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 20521945216 cubic inches would be around 228.2 feet tall.

Recreational maths with 20521945216

• 20521945216 backwards is 61254912502
• 20521945216 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20521945216's digits is 37
• More coming soon!