21357963123

Names of 21357963123

• Cardinal: 21357963123 can be written as Twenty-one billion, three hundred fifty-seven million, nine hundred sixty-three thousand, one hundred twenty-three.

Scientific notation

• Scientific notation: 2.1357963123 × 10¹⁰

Factors of 21357963123

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 8748

Divisors of 21357963123

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 21 29 61 67 87 183 201 203 427 469 609 1281 1407 1769 1943 4087 5307 5829 8581 12261 12383 13601 25743 28609 37149 40803 60067 85827 118523 180201 248849 355569 523441 574927 746547 829661 1570323 1724781 1741943 2488983 3664087 4024489 5225829 10992261 12073467 15179789 16672883 35070547 45539367 50018649 105211641 106258523 116710181 245493829 318775569 350130543 736481487 1017045863 3051137589 7119321041 21357963123
• Sum of all divisors σ(n): 34734443520
• Sum of proper divisors (its aliquot sum) s(n): 13376480397
• 21357963123 is a deficient number, because the sum of its proper divisors (13376480397) is less than itself. Its deficiency is 7981482726

Bases of 21357963123

• Binary: 10011111001000010001010011101110011₂
• Hexadecimal: 0x4F908A773
• Base-36: 9T7Z9TF

Squares and roots of 21357963123

• 21357963123 squared (21357963123²) is 456162588763427913129
• 21357963123 cubed (21357963123³) is 9742703748901507539678029541867
• The square root of 21357963123 is 146143.6386675793
• The cube root of 21357963123 is 2774.5120208093

Scales and comparisons

• 21,357,963,123 seconds is equal to 679 years, 6 weeks, 15 hours, 32 minutes, 3 seconds.
• To count from 1 to 21,357,963,123 would take you about one thousand, three hundred fifty-eight 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 21357963123 cubic inches would be around 231.2 feet tall.

Recreational maths with 21357963123

• 21357963123 backwards is 32136975312
• The number of decimal digits it has is: 11
• The sum of 21357963123's digits is 42
• More coming soon!