21448386765

Names of 21448386765

• Cardinal: 21448386765 can be written as Twenty-one billion, four hundred forty-eight million, three hundred eighty-six thousand, seven hundred sixty-five.

Scientific notation

• Scientific notation: 2.1448386765 × 10¹⁰

Factors of 21448386765

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5406

Divisors of 21448386765

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 9 13 15 23 27 39 45 65 69 101 115 117 135 195 207 299 303 345 351 505 585 621 897 909 1035 1313 1495 1515 1755 2323 2691 2727 3105 3939 4485 4545 5261 6565 6969 8073 11615 11817 13455 13635 15783 19695 20907 26305 30199 34845 35451 40365 47349 59085 62721 68393 78915 90597 104535 121003 142047 150995 177255 205179 236745 271791 313605 341965 363009 452985 531361 605015 615537 710235 815373 1025895 1089027 1358955 1573039 1594083 1815045 1846611 2656805 3077685 3267081 4076865 4719117 4782249 5445135 6907693 7865195 7970415 9233055 12221303 14157351 14346747 16335405 20723079 23595585 23911245 34538465 36663909 42472053 61106515 62169237 70786755 71733735 103615395 109991727 158876939 183319545 186507711 212360265 310846185 329975181 476630817 549958635 794384695 932538555 1429892451 1649875905 2383154085 4289677353 7149462255 21448386765
• Sum of all divisors σ(n): 43281423360
• Sum of proper divisors (its aliquot sum) s(n): 21833036595
• 21448386765 is an abundant number, because the sum of its proper divisors (21833036595) is greater than itself. Its abundance is 384649830

Bases of 21448386765

• Binary: 10011111110011011000110100011001101₂
• Hexadecimal: 0x4FE6C68CD
• Base-36: 9UPTD59

Squares and roots of 21448386765

• 21448386765 squared (21448386765²) is 460033294821027165225
• 21448386765 cubed (21448386765³) is 9866972032098662094317358247125
• The square root of 21448386765 is 146452.6775617297
• The cube root of 21448386765 is 2778.4220106755

Scales and comparisons

• 21,448,386,765 seconds is equal to 681 years, 51 weeks, 4 days, 5 hours, 12 minutes, 45 seconds.
• To count from 1 to 21,448,386,765 would take you about one thousand, three hundred sixty-three 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 21448386765 cubic inches would be around 231.5 feet tall.

Recreational maths with 21448386765

• 21448386765 backwards is 56768384412
• The number of decimal digits it has is: 11
• The sum of 21448386765's digits is 54
• More coming soon!