21995385321

Names of 21995385321

• Cardinal: 21995385321 can be written as Twenty-one billion, nine hundred ninety-five million, three hundred eighty-five thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 2.1995385321 × 10¹⁰

Factors of 21995385321

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4250

Divisors of 21995385321

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 13 19 21 39 57 79 91 133 169 237 247 273 399 507 553 741 1027 1183 1501 1659 1729 3081 3211 3549 4129 4503 5187 7189 9633 10507 12387 13351 19513 21567 22477 28903 31521 40053 53677 58539 67431 78451 86709 93457 136591 161031 235353 253669 280371 326191 375739 409773 549157 697801 761007 978573 1019863 1127217 1647471 1775683 2093403 2283337 3059589 4240483 4884607 5327049 6197629 6850011 7139041 12721449 13258219 14653821 18592887 21417123 29683381 39774657 43383403 55126279 80569177 89050143 92807533 130150209 165378837 241707531 278422599 385883953 563984239 1047399301 1157651859 1691952717 3142197903 7331795107 21995385321
• Sum of all divisors σ(n): 38696448000
• Sum of proper divisors (its aliquot sum) s(n): 16701062679
• 21995385321 is a deficient number, because the sum of its proper divisors (16701062679) is less than itself. Its deficiency is 5294322642

Bases of 21995385321

• Binary: 10100011111000001101111000111101001₂
• Hexadecimal: 0x51F06F1E9
• Base-36: A3RHFXL

Squares and roots of 21995385321

• 21995385321 squared (21995385321²) is 483796975419262273041
• 21995385321 cubed (21995385321³) is 10641300891481039221095105431161
• The square root of 21995385321 is 148308.4128463387
• The cube root of 21995385321 is 2801.8434001063

Scales and comparisons

• 21,995,385,321 seconds is equal to 699 years, 20 weeks, 5 hours, 15 minutes, 21 seconds.
• To count from 1 to 21,995,385,321 would take you about one thousand, three hundred ninety-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 21995385321 cubic inches would be around 233.5 feet tall.

Recreational maths with 21995385321

• 21995385321 backwards is 12358359912
• The number of decimal digits it has is: 11
• The sum of 21995385321's digits is 48
• More coming soon!