21383212900

Names of 21383212900

• Cardinal: 21383212900 can be written as Twenty-one billion, three hundred eighty-three million, two hundred twelve thousand, nine hundred.

Scientific notation

• Scientific notation: 2.13832129 × 10¹⁰

Factors of 21383212900

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2103

Divisors of 21383212900

• Number of divisors d(n): 81
• Complete list of divisors:
  1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 140 175 196 245 350 490 700 980 1225 2089 2450 4178 4900 8356 10445 14623 20890 29246 41780 52225 58492 73115 102361 104450 146230 204722 208900 292460 365575 409444 511805 731150 1023610 1462300 2047220 2559025 4363921 5118050 8727842 10236100 17455684 21819605 30547447 43639210 61094894 87278420 109098025 122189788 152737235 213832129 218196050 305474470 427664258 436392100 610948940 763686175 855328516 1069160645 1527372350 2138321290 3054744700 4276642580 5345803225 10691606450 21383212900
• Sum of all divisors σ(n): 54003190059
• Sum of proper divisors (its aliquot sum) s(n): 32619977159
• 21383212900 is an abundant number, because the sum of its proper divisors (32619977159) is greater than itself. Its abundance is 11236764259

Bases of 21383212900

• Binary: 10011111010100010011110111101100100₂
• Hexadecimal: 0x4FA89EF64
• Base-36: 9TN0GO4

Squares and roots of 21383212900

• 21383212900 squared (21383212900²) is 457241793926726410000
• 21383212900 cubed (21383212900³) is 9777298626313117825082689000000
• 21383212900 is a perfect square number. Its square root is 146230
• The cube root of 21383212900 is 2775.6049499499

Scales and comparisons

• 21,383,212,900 seconds is equal to 679 years, 47 weeks, 5 days, 21 hours, 21 minutes, 40 seconds.
• To count from 1 to 21,383,212,900 would take you about one thousand, three hundred fifty-nine 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 21383212900 cubic inches would be around 231.3 feet tall.

Recreational maths with 21383212900

• 21383212900 backwards is 00921238312
• The number of decimal digits it has is: 11
• The sum of 21383212900's digits is 31
• More coming soon!