21375828071

Names of 21375828071

• Cardinal: 21375828071 can be written as Twenty-one billion, three hundred seventy-five million, eight hundred twenty-eight thousand and seventy-one.

Scientific notation

• Scientific notation: 2.1375828071 × 10¹⁰

Factors of 21375828071

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 544

Divisors of 21375828071

• Number of divisors d(n): 64
• Complete list of divisors:
  1 13 31 37 61 71 331 403 481 793 923 1147 1891 2201 2257 2627 4303 4331 10261 12247 14911 20191 23501 24583 28613 29341 34151 56303 69967 81437 133393 134261 159211 160247 262483 305513 379657 625921 728531 747067 869537 909571 1058681 1433561 1745393 2083211 4935541 4967657 8136973 9470903 9711871 11303981 18636293 23159077 26955647 44440391 53041757 64579541 301068001 350423411 577725083 689542841 1644294467 21375828071
• Sum of all divisors σ(n): 25230385152
• Sum of proper divisors (its aliquot sum) s(n): 3854557081
• 21375828071 is a deficient number, because the sum of its proper divisors (3854557081) is less than itself. Its deficiency is 17521270990

Bases of 21375828071

• Binary: 10011111010000110010100000001100111₂
• Hexadecimal: 0x4FA194067
• Base-36: 9TIM6HZ

Squares and roots of 21375828071

• 21375828071 squared (21375828071²) is 456926025720951581041
• 21375828071 cubed (21375828071³) is 9767172166976384818848039201911
• The square root of 21375828071 is 146204.7470877741
• The cube root of 21375828071 is 2775.2853888671

Scales and comparisons

• 21,375,828,071 seconds is equal to 679 years, 35 weeks, 4 days, 10 hours, 1 minute, 11 seconds.
• To count from 1 to 21,375,828,071 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 21375828071 cubic inches would be around 231.3 feet tall.

Recreational maths with 21375828071

• 21375828071 backwards is 17082857312
• The number of decimal digits it has is: 11
• The sum of 21375828071's digits is 44
• More coming soon!