2144721644

Names of 2144721644

• Cardinal: 2144721644 can be written as Two billion, one hundred forty-four million, seven hundred twenty-one thousand, six hundred forty-four.

Scientific notation

• Scientific notation: 2.144721644 × 10⁹

Factors of 2144721644

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 272

Divisors of 2144721644

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 13 26 41 52 82 89 127 164 178 254 356 508 533 1066 1157 1651 2132 2314 3302 3649 4628 5207 6604 7298 7921 10414 11303 14596 15842 20828 22606 31684 45212 47437 67691 94874 102973 135382 146939 189748 205946 270764 293878 324761 411892 463423 587756 649522 926846 1005967 1299044 1853692 2011934 4023868 4221893 6024499 8443786 12048998 13077571 16887572 24097996 26155142 41244647 52310284 82489294 164978588 536180411 1072360822 2144721644
• Sum of all divisors σ(n): 4220579328
• Sum of proper divisors (its aliquot sum) s(n): 2075857684
• 2144721644 is a deficient number, because the sum of its proper divisors (2075857684) is less than itself. Its deficiency is 68863960

Bases of 2144721644

• Binary: 1111111110101011101101011101100₂
• Hexadecimal: 0x7FD5DAEC
• Base-36: ZGWTT8

Squares and roots of 2144721644

• 2144721644 squared (2144721644²) is 4599830930242062736
• 2144721644 cubed (2144721644³) is 9865356954830806109105057984
• The square root of 2144721644 is 46311.1395238769
• The cube root of 2144721644 is 1289.6058014727

Scales and comparisons

• 2,144,721,644 seconds is equal to 68 years, 10 weeks, 1 day, 4 hours, 44 seconds.
• To count from 1 to 2,144,721,644 would take you about one hundred thirty-six 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 2144721644 cubic inches would be around 107.5 feet tall.

Recreational maths with 2144721644

• 2144721644 backwards is 4461274412
• The number of decimal digits it has is: 10
• The sum of 2144721644's digits is 35
• More coming soon!