21373570827

Names of 21373570827

• Cardinal: 21373570827 can be written as Twenty-one billion, three hundred seventy-three million, five hundred seventy thousand, eight hundred twenty-seven.

Scientific notation

• Scientific notation: 2.1373570827 × 10¹⁰

Factors of 21373570827

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8359

Divisors of 21373570827

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 21 49 61 63 97 147 183 291 427 441 549 679 873 1281 2037 2989 3843 4753 5917 6111 8191 8967 14259 17751 24573 26901 41419 42777 53253 57337 73719 124257 172011 289933 372771 401359 499651 516033 794527 869799 1204077 1498953 2383581 2609397 3497557 3612231 4496859 5561689 7150743 10492671 16685067 24482899 31478013 38931823 48466147 50055201 73448697 116795469 145398441 220346091 339263029 350386407 436195323 1017789087 2374841203 3053367261 7124523609 21373570827
• Sum of all divisors σ(n): 36882972672
• Sum of proper divisors (its aliquot sum) s(n): 15509401845
• 21373570827 is a deficient number, because the sum of its proper divisors (15509401845) is less than itself. Its deficiency is 5864168982

Bases of 21373570827

• Binary: 10011111001111101101100111100001011₂
• Hexadecimal: 0x4F9F6CF0B
• Base-36: 9TH9SSR

Squares and roots of 21373570827

• 21373570827 squared (21373570827²) is 456829529896785463929
• 21373570827 cubed (21373570827³) is 9764078313114058112910535199283
• The square root of 21373570827 is 146197.0274219007
• The cube root of 21373570827 is 2775.1876972627

Scales and comparisons

• 21,373,570,827 seconds is equal to 679 years, 31 weeks, 6 days, 7 hours, 27 seconds.
• To count from 1 to 21,373,570,827 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 21373570827 cubic inches would be around 231.3 feet tall.

Recreational maths with 21373570827

• 21373570827 backwards is 72807537312
• The number of decimal digits it has is: 11
• The sum of 21373570827's digits is 45
• More coming soon!