21401064128

Names of 21401064128

• Cardinal: 21401064128 can be written as Twenty-one billion, four hundred one million, sixty-four thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1401064128 × 10¹⁰

Factors of 21401064128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2567

Divisors of 21401064128

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 8 16 32 64 359 569 718 1138 1436 1637 2276 2872 3274 4552 5744 6548 9104 11488 13096 18208 22976 26192 36416 52384 104768 204271 408542 587683 817084 931453 1175366 1634168 1862906 2350732 3268336 3725812 4701464 6536672 7451624 9402928 13073344 14903248 18805856 29806496 37611712 59612992 334391627 668783254 1337566508 2675133016 5350266032 10700532064 21401064128
• Sum of all divisors σ(n): 42686935200
• Sum of proper divisors (its aliquot sum) s(n): 21285871072
• 21401064128 is a deficient number, because the sum of its proper divisors (21285871072) is less than itself. Its deficiency is 115193056

Bases of 21401064128

• Binary: 10011111011100110100101001011000000₂
• Hexadecimal: 0x4FB9A52C0
• Base-36: 9TXN2RK

Squares and roots of 21401064128

• 21401064128 squared (21401064128²) is 458005545810768400384
• 21401064128 cubed (21401064128³) is 9801806056875896289573963825152
• The square root of 21401064128 is 146291.0254526913
• The cube root of 21401064128 is 2776.3771160329

Scales and comparisons

• 21,401,064,128 seconds is equal to 680 years, 25 weeks, 2 days, 12 hours, 2 minutes, 8 seconds.
• To count from 1 to 21,401,064,128 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 21401064128 cubic inches would be around 231.4 feet tall.

Recreational maths with 21401064128

• 21401064128 backwards is 82146010412
• The number of decimal digits it has is: 11
• The sum of 21401064128's digits is 29
• More coming soon!