21999378144

Names of 21999378144

• Cardinal: 21999378144 can be written as Twenty-one billion, nine hundred ninety-nine million, three hundred seventy-eight thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 2.1999378144 × 10¹⁰

Factors of 21999378144

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3884135

Divisors of 21999378144

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 59 96 118 177 236 354 472 708 944 1416 1888 2832 5664 3884071 7768142 11652213 15536284 23304426 31072568 46608852 62145136 93217704 124290272 186435408 229160189 372870816 458320378 687480567 916640756 1374961134 1833281512 2749922268 3666563024 5499844536 7333126048 10999689072 21999378144
• Sum of all divisors σ(n): 58727168640
• Sum of proper divisors (its aliquot sum) s(n): 36727790496
• 21999378144 is an abundant number, because the sum of its proper divisors (36727790496) is greater than itself. Its abundance is 14728412352

Bases of 21999378144

• Binary: 10100011111010000111101111011100000₂
• Hexadecimal: 0x51F43DEE0
• Base-36: A3TV0TC

Squares and roots of 21999378144

• 21999378144 squared (21999378144²) is 483972638722704884736
• 21999378144 cubed (21999378144³) is 10647097090610281917823197609984
• The square root of 21999378144 is 148321.8734509513
• The cube root of 21999378144 is 2802.0129294223

Scales and comparisons

• 21,999,378,144 seconds is equal to 699 years, 26 weeks, 4 days, 10 hours, 22 minutes, 24 seconds.
• To count from 1 to 21,999,378,144 would take you about one thousand, three hundred ninety-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 21999378144 cubic inches would be around 233.5 feet tall.

Recreational maths with 21999378144

• 21999378144 backwards is 44187399912
• The number of decimal digits it has is: 11
• The sum of 21999378144's digits is 57
• More coming soon!