21400282680

Names of 21400282680

• Cardinal: 21400282680 can be written as Twenty-one billion, four hundred million, two hundred eighty-two thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.140028268 × 10¹⁰

Factors of 21400282680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 25476544

Divisors of 21400282680

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 25476527 50953054 76429581 101906108 127382635 152859162 178335689 203812216 254765270 305718324 356671378 382147905 509530540 535007067 611436648 713342756 764295810 891678445 1019061080 1070014134 1426685512 1528591620 1783356890 2140028268 2675035335 3057183240 3566713780 4280056536 5350070670 7133427560 10700141340 21400282680
• Sum of all divisors σ(n): 73372400640
• Sum of proper divisors (its aliquot sum) s(n): 51972117960
• 21400282680 is an abundant number, because the sum of its proper divisors (51972117960) is greater than itself. Its abundance is 30571835280

Bases of 21400282680

• Binary: 10011111011100011100110011000111000₂
• Hexadecimal: 0x4FB8E6638
• Base-36: 9TX6BSO

Squares and roots of 21400282680

• 21400282680 squared (21400282680²) is 457972098783907982400
• 21400282680 cubed (21400282680³) is 9800732373528515058468464832000
• The square root of 21400282680 is 146288.3545604365
• The cube root of 21400282680 is 2776.3433229975

Scales and comparisons

• 21,400,282,680 seconds is equal to 680 years, 24 weeks, 10 hours, 58 minutes.
• To count from 1 to 21,400,282,680 would take you about one thousand, three hundred sixty 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 21400282680 cubic inches would be around 231.4 feet tall.

Recreational maths with 21400282680

• 21400282680 backwards is 08628200412
• The number of decimal digits it has is: 11
• The sum of 21400282680's digits is 33
• More coming soon!