21137946948

Names of 21137946948

• Cardinal: 21137946948 can be written as Twenty-one billion, one hundred thirty-seven million, nine hundred forty-six thousand, nine hundred forty-eight.

Scientific notation

• Scientific notation: 2.1137946948 × 10¹⁰

Factors of 21137946948

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 675

Divisors of 21137946948

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 3 4 6 9 12 17 18 27 34 36 51 54 68 81 102 108 153 162 204 243 306 324 459 486 612 653 729 918 972 1306 1377 1458 1836 1959 2612 2754 2916 3918 4131 5508 5877 7836 8262 11101 11754 12393 16524 17631 22202 23508 24786 33303 35262 44404 49572 52893 66606 70524 99909 105786 133212 158679 199818 211572 299727 317358 399636 426409 476037 599454 634716 852818 899181 952074 1198908 1279227 1705636 1798362 1904148 2558454 2697543 3596724 3837681 5116908 5395086 7248953 7675362 8092629 10790172 11513043 14497906 15350724 16185258 21746859 23026086 28995812 32370516 34539129 43493718 46052172 65240577 69078258 86987436 103617387 130481154 138156516 195721731 207234774 260962308 310852161 391443462 414469548 587165193 621704322 782886924 1174330386 1243408644 1761495579 2348660772 3522991158 5284486737 7045982316 10568973474 21137946948
• Sum of all divisors σ(n): 58814262234
• Sum of proper divisors (its aliquot sum) s(n): 37676315286
• 21137946948 is an abundant number, because the sum of its proper divisors (37676315286) is greater than itself. Its abundance is 16538368338

Bases of 21137946948

• Binary: 10011101011111010110111100101000100₂
• Hexadecimal: 0x4EBEB7944
• Base-36: 9PKZK90

Squares and roots of 21137946948

• 21137946948 squared (21137946948²) is 446812801176462514704
• 21137946948 cubed (21137946948³) is 9444705286955336622123821923392
• The square root of 21137946948 is 145388.9505705299
• The cube root of 21137946948 is 2764.9520312315

Scales and comparisons

• 21,137,946,948 seconds is equal to 672 years, 6 weeks, 2 days, 3 hours, 55 minutes, 48 seconds.
• To count from 1 to 21,137,946,948 would take you about one thousand, three hundred forty-four 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 21137946948 cubic inches would be around 230.4 feet tall.

Recreational maths with 21137946948

• 21137946948 backwards is 84964973112
• 21137946948 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21137946948's digits is 54
• More coming soon!