21126326436

Names of 21126326436

• Cardinal: 21126326436 can be written as Twenty-one billion, one hundred twenty-six million, three hundred twenty-six thousand, four hundred thirty-six.

Scientific notation

• Scientific notation: 2.1126326436 × 10¹⁰

Factors of 21126326436

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 349620

Divisors of 21126326436

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 23 36 46 69 73 92 138 146 207 219 276 292 414 438 657 828 876 1314 1679 2628 3358 5037 6716 10074 15111 20148 30222 60444 349519 699038 1048557 1398076 2097114 3145671 4194228 6291342 8038937 12582684 16077874 24116811 25514887 32155748 48233622 51029774 72350433 76544661 96467244 102059548 144700866 153089322 229633983 289401732 306178644 459267966 586842401 918535932 1173684802 1760527203 2347369604 3521054406 5281581609 7042108812 10563163218 21126326436
• Sum of all divisors σ(n): 56488024320
• Sum of proper divisors (its aliquot sum) s(n): 35361697884
• 21126326436 is an abundant number, because the sum of its proper divisors (35361697884) is greater than itself. Its abundance is 14235371448

Bases of 21126326436

• Binary: 10011101011001110100010100010100100₂
• Hexadecimal: 0x4EB3A28A4
• Base-36: 9PE2HT0

Squares and roots of 21126326436

• 21126326436 squared (21126326436²) is 446321668680432462096
• 21126326436 cubed (21126326436³) is 9429137268003053559891292769856
• The square root of 21126326436 is 145348.9815444195
• The cube root of 21126326436 is 2764.4452641369

Scales and comparisons

• 21,126,326,436 seconds is equal to 671 years, 39 weeks, 16 hours, 36 seconds.
• To count from 1 to 21,126,326,436 would take you about one thousand, three hundred forty-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 21126326436 cubic inches would be around 230.4 feet tall.

Recreational maths with 21126326436

• 21126326436 backwards is 63462362112
• 21126326436 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21126326436's digits is 36
• More coming soon!