21478898896

Names of 21478898896

• Cardinal: 21478898896 can be written as Twenty-one billion, four hundred seventy-eight million, eight hundred ninety-eight thousand, eight hundred ninety-six.

Scientific notation

• Scientific notation: 2.1478898896 × 10¹⁰

Factors of 21478898896

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 10014

Divisors of 21478898896

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 1801 3602 7204 8191 12607 14408 16382 23413 25214 28816 32764 46826 50428 57337 65528 93652 100856 106483 114674 131056 163891 187304 201712 212966 229348 327782 374608 425932 458696 655564 745381 851864 917392 1311128 1490762 1703728 2622256 2981524 5963048 11926096 14751991 29503982 59007964 103263937 118015928 191775883 206527874 236031856 383551766 413055748 767103532 826111496 1342431181 1534207064 1652222992 2684862362 3068414128 5369724724 10739449448 21478898896
• Sum of all divisors σ(n): 51253608448
• Sum of proper divisors (its aliquot sum) s(n): 29774709552
• 21478898896 is an abundant number, because the sum of its proper divisors (29774709552) is greater than itself. Its abundance is 8295810656

Bases of 21478898896

• Binary: 10100000000001111011111110011010000₂
• Hexadecimal: 0x5003DFCD0
• Base-36: 9V7ZCGG

Squares and roots of 21478898896

• 21478898896 squared (21478898896²) is 461343097784590018816
• 21478898896 cubed (21478898896³) is 9909141753682650600959601627136
• The square root of 21478898896 is 146556.8111552651
• The cube root of 21478898896 is 2779.7388992743

Scales and comparisons

• 21,478,898,896 seconds is equal to 682 years, 50 weeks, 8 hours, 48 minutes, 16 seconds.
• To count from 1 to 21,478,898,896 would take you about one thousand, three hundred sixty-five 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 21478898896 cubic inches would be around 231.6 feet tall.

Recreational maths with 21478898896

• 21478898896 backwards is 69889887412
• The number of decimal digits it has is: 11
• The sum of 21478898896's digits is 70
• More coming soon!